1) Put together a list of trustworthy contractors that others have used(i.e. plumbers, electricians, heat/ac, window companies, etc.) You will want to know who to call before an emergency, not during
2) Before doing any projects, work on building an emergency fund for the house if you don't already have one
3) Begin with small, easily completed projects(knobs on cabinets, painting a room, etc). These will give you a sense of accomplishment quickly and inexpensively
4) Make a list of projects and prioritize it. Revisit the list every 3 months and you will have plan where you want your house to go.
Now, relax and enjoy knowing that you have your own home!