To start, browse remodeling ideas on Pinterest, Houzz and Google, to get some ideas floating around in your head. Make a file, keep copies of pictures of rooms and homes that will work for you.
Then, pick the most pressing project, the most common remodels are done in the kitchen, bath or deck. Determine your budget, and research a contractor. You want to get one with insurance, appropriate licenses, and references.
When you are ready to get started, discuss what you want done with your contractor, and let him or her advise you on materials and methods of installation that will help you achieve your goals and stay within your budget.