Numbers look fine to me. I suspect that your very high win rate is largely due to not losing 2-3 big pots with AA.
By my calculations, youve won about $1555.
Take 3 AA hands that turned into big pots and lets say you got outdrawn. Those 3 hands you may have won $200. Now lets say you lost $200 instead.
Now youve won $1155 and your win rate is 11.5 PTBBs, which is still very good but probably more realistic.
Good job so far.