Some Reasons

1. Having generic ranges you don't appear to be widening or tightening given who is left to act behind you.

2. Probably not isolating weak limpers wide enough (based on a post you made in a thread a few days ago)

3. Flatting hands like JTo QTo KTo KJo is disasterous vs EP opens and will be burning a considerable amount of money most of the time. Dump dominated stuff and play pairs/SCs/hands with more implied odds and less reverse implied odds vs a tight range.

4. Not thinking for yourself enough about preflop situations and how you can exploit certain types of blinds/openers/opponents.

5. Stop limping the completelty. Out of interest why do you decide it is good to limp trash when you could just take down the blinds and get initiative to c bet and win a decent sized pot?

6.Sucking at poker postflop, FTR will soon help with that keep posting hands and doing what you're doing.