Personally I think 2 is about right. And just to let you know potty training is really really hard. It's gonna take time for him to get it - practice makes perfect.
He is showing signs that he is aware that he is doing a wee which is great!
I would start talking to him about wee and poo. Look your nappy is wet, you did a wee wee. Soon you'll do wee wee in the potty like a big boy. Build it up a bit, like it's exciting so he wants to do it.
You can take him toilet with you, listen mummy is doing a wee wee on the toilet. Let him flush it. Let him sit on the toilet - anything that is fun.
Go buy a potty together, make it fun and exciting.
Then when you're gonna do it, try and pick a time where your at home for at least three days. I just left my son with no bottoms or pants on. Keep asking if he needs a wee wee or poo and try and get him to sit on the potty.
Praise him when he gets it right, and when he has an accident maybe 'oh no - that should have been in the potty - he's thirst now!'
There's gona be loads of accidents. Be patient and you gona need to be with him a lot at first.
Nappies only at night. I brought a portable potty from Mothercare, and used to take that out with me.
It's hard work but needs to be done.