What to do if i just got a crown for my tooth. can i eat normally now?

Depends: As far as a well done crown, there shouldn't be any restriction on eating on it. You may want to avoid ice, kernels, other things that you shouldn't chew on anyway, especially if the crown is porcelain. Now depending on the cement used there may be a period you should wait before eating things that can move the crown, like gum and such, for a period of time until the cement sets. Ask your dentist.

Yes: Just be sure to brush and floss it daily. You can get decay on a tooth with a crown as well as periodontal disease which affects 75% of individuals over the age of 12.

Yes: As long as 'normally' for you does not include eating on ice cubes, metal, walnuts in shells, un-popped popcorn, etc. Ask your dentist if there are any specific precautions based upon your specific situation.