Either you are playing adaptive poker and loosening up because it is more +EV, or you are playing sloppy poker and copying bad habbits. If its the former then its fine, you will build up your roll fast and soon be at 25NL + and you are probably already a good player if you can do this instinctivly.

If its the latter (as I suspect) then be patient. Cut down and just play good hands. You will win even more this way than you already are.