There are thousands of threads on this all over. Do some searches, read some of the other threads. There are a few guides that are even stickied at the top of either this section of the forums or in the "learning poker" section.
Other than that: Read up on position. Don't play hands just because they are suited. J3 suited is a horrible hand from any position...don't listen to anyone that tells
you otherwise. I've noticed lots of losing players at low limits play lots of suited hands and limp in to lots of pots. Try never to limp in. There are very few situations when this is profitable.
SO basically - Raise more (especially on the button) and fold more when UTG.
If you don't have PT3 or HEM you should get it...they are pretty cheap and are definitely worth it. From those you could post your stats on here and we could analyze your play for you. If you don't feel like getting one of those right now, then at least post hands in the "Hand analysis" thread. Err maybe its called "Cash Game Hand Analysis"....idk...something like that. Anywho - specific questions would be best, because giving general tips is pretty hard.