1) Learn to use your camera in manual mode without a zoom, even if you later switch back to full auto.

2) Learn the rules of photography especially exposure and composition, but realise that they are more guidlines or starting points than fixed rules.

3) Buy the best gear you can afford, it will last you longer and save you money in the long run (when you realise that your kit lens isn't good enough and you "need" more) but don't ever blame your gear except maybe tripod and don't buy the latest and greatest just because the new model came out.

4) Print out your photos bigger than normal (at least 6x8") and put them up so you see them daily. change them everytime you get used to them. You will be amazed at the things you don't pick up on the screen or in small prints and you will be subconsiously improving your compositions. You can even try to sell them once you have taken them down.

5) don't be afraid to forget everything you learnt and just have fun. A camera can mediate or modify your experience buy only if you let it.