counting by 2's is way easier that counting 1's.
that's cause they cancel out. But what i did was practice counting singles, pairs and sometimes 3.
have u counted on a table yet? it may be easier ( and safer) to wait until all cars are dealt after bet's to begin counting so you can pair up hands.
it also helps alot cause if you stare and focus on cards as they're being dealt, you just look like your counting or something
theres lots of sites to practice counting to.