Q.F.
hi, 1st i'd like to say, JOIN THE CLUB! from everything i've been told (and experienced w/ my now 1 1/2 yr old girl) terrible two's is just a rounded off number that RARELY happens at 2!!! it either starts around 1, or 3 (depending on the development of the child). my daughter (just like yours) started around the time she could crawl, and start to walk while holding on! it is USUALLY just a faze. yes, there are children that never get out of it, but if you do things right, then you don't have to worry. we tried the "do nice" or "no, you'll hurt yourself, or someone else" and all that did was start more screaming and hitting (tantrums!). sometimes it resulted in her having bloody lips (we'd put her in the crib in fear she would crack her head open on the hard floor or furniture she would slam into) and she would jump up and down and smash her face onto the crib railing. so we padded the railing, and no more bloody lips.
to be honest, we just ignore her now (at least i do!). if i ignore her, and sometimes walk away from her, the fit usually lasts only 1-3 min and she's fine. if not, after a couple minutes, i pick her up, and bring her over to her toys and distract her with something else (usually the fit starts with the BAD WORD NO!) but if she's doing something she should be punished for, she gets put in time-out (unfortunately at this young age, she doesn't really understand, so i have to HOLD HER and talk to her about why it's wrong to do what she's being punished for). the time-out doesn't work all that well....but sometimes it does, and once she's older, it will be better.
as far as the diaper changing goes, once she started fighting that, i got rid of the table (just too dangerous w/ a kid like that). i now either change her on my bed, or on the floor, and when she fights, i actually have to put my legs over her arms to pin her down (i checked with the dr 1st just so it would be noted JUST INCASE she got hurt from it)...a friend of mine told me she did that w/ her son, or the diaper just COULDN'T be changed! while i did that, i just told her sternly, if you didn't fight me, it would be done so much quicker, and there wouldn't be a problem. if i talk to her while i change her, and talk it out step by step...ok, just a little wipe, to clean, clean clean your butt, now a little cream to soften, ok, diaper time, etc....that keeps her calmer...oh and GIVE HER SOMETHING! if you give her a toy, or a bottle, or SOMETHING while you change her, it makes it so much easier (unfortunately, i didn't think of that until after MONTHS of fighting diaper changes!) try that 1st before getting rid of the changing table.
now that my daughter is 1 1/2 (and i've had plenty of time to try out all the different disciplines) i started trying to prevent the tantrums. if she picks up something she shouldn't have i tell her immediately, "if you put that in your mouth, i WILL take it away!". everytime she puts it near her mouth, i repeat that. and IF she puts it in her mouth, surprisingly she doesn't have a fit when i take it away, all i say is "ok, i'm taking it, i warned you, and you did it anyway!" and she just walks away and does something else, SOMETIMES she just drops it after hearing me warn her a couple of times, and i put it out of her reach, or away. sometimes if i have something i know will distract her from what she has, i just say "can mommy have that? it's not for you, here, take this" and she doesn't care, just takes what i give her, and drops (or lets me take) what she originally had. but you HAVE TO HAVE something there to hand her...if not, wait until you have something to give her immediately.
you also have to try and get down on their level. try to sit on the floor with her, or put her on your lap...and try your hardest to get her to look in you in the face while you try to explain why she can't have what she has, why she can't hit, or throw a fit, or whatever the problem may be at that moment. i've also tried to start giving her her own personal "me-time". this seems to work really well. i have a tv sitting ontop of her radio (we have to play lullabies while she sleeps, or she STILL wakes up through the night). and when she gives those signs that she's most likely going to start a tantrum, i just ask her if she wants to watch some cartoons. i keep adding to the collection, but i try to have mostly educational tapes for her to watch. but she still loves her carebears! and i've noticed that after a couple of months of starting this, she will go into her room, stand on tippy-toes and reach for the tapes and want to lay in the crib and watch a lil tv when she starts getting in one of those moods that lead to the tantrum. i know that it's horrible to have the tv be the "babysitter" BUT when it only takes 20 min of tv to calm her down, sometimes that's all you can do. at least i try to make it as educational as possible. and she does learn from it, and it shows. and with all these things i've had to do (and what you have to do changes all the time as they do!) all these things have changed her into a very sweet little girl. she hugs and kisses, and wants to just cuddle, BUT there are still some tantrums (mostly the throwing herself on the floor, kicking her feet and crying...but no more hurting us!).
so GOOD LUCK! i hope that some of this extremely long (sorry for that) suggestion helps some.