Oh I've been there a few times where I wanted to go back to nappies... We just potty trained our son (who is 3 on the 20th).... He did a few pees on the potty and then just kept peeing on the floor (was going nappy free) and I was like: maybe we should go back into nappies for a bit. But stuck it out and it actually only took 1 or 2 days for him to stop peeing on the floor!
Then we had the poo thing... it totally FREAKED him out to poo on the potty, as if he was scared the poo was going to jump out and eat him or something! Made him sit on the potty though and distracted him and sat with him until he was done. And in the past couple of days he's done 2 poos on the potty without us really telling him to sit down on it and he didn't freak out!! So there's some progress there, though the past 2 days he's pooed in his nappy at naptime....
He still wears nappies at night and during his nap and also when we go out. But I put some jeans on him the other day which were a bit tighter than I thought they were so he couldn't really pull them down himself and he suddenly told me he needed to pee so I just bought a travel potty that folds so we can take that with us when we go out instead of wearing a nappy!
Don't worry about potty training yet Donna! I had lots of friends who started when their kids were about 2/2.5 but it was definitely too early for Lucas! He wouldn't even sit on his potty for longer than 2 seconds! But he's done really well now and I'm definitely glad we waited! Only took about a week for him to be dry!!