L.M.
My boys were both 3. I tried around 2 1/2 and they would get upset and scared of the potty. I immediately stopped and it was much easier a few months later. I put them in underwear with plastic pants over. I ended up putting the potty in front to the TV (with lots of old towels under it and gave my youngest a big drink. I then said you can watch Dora for 30 minutes but sit on the potty while you watch. He ended up going in the potty while he was watching and I made a big deal celebrating it. It "clicked" with him. I did this after a few days of him having an accident right after he sat on the "big" potty. He wanted to be like his big brother but we realized he didn't want to be away from everyone. So, I moved his training potty and that worked for us. Good luck.