Assuming you do need to repaint your deck, know that it will be a lot of work. Keep reading and asking questions. You will gradually pick up skills you need to take care of your boat. Regarding doing a big job on your boat: If possible, have your boat as near to where you live as possible, and have some protection from the elements (indoor storage would be ideal). I have painted the deck of both the boats I have owned, and tho physically improbable, it both sucked and blowed at the same time.
But, looks good now.