Ok. 1st pick a program, heres a list of some proven ones:
5/3/1* Best choice
rippetoes/bill starr 5x5
2nd-get your nutrition in line. read some articles on this site, nutrition isnt that complicated, so dont be intimidated.
Good protein sources-milk, eggs, meat, poultry, fish, protein powders
good carb sources- sweet potatoes, brown or whole grain rice pasta and bread, oatmeal
good fat sources- avacados, nuts, olive oil
Since your trying to lose weight, Eats lots of protein, a little bit of carbs, and a moderate amount of fat. Remember to eat copious amounts of vegetables, and take your vitamins.
If after 2 weeks you havent lost any weight, eat a little less.
3rd- conditioning. You also need to be conditioning, not just bc you want to lose weight, you should do this regardless. theres 3 main ways you could do this:
1-steady state or distance running, biking, etc.
2-sprints, hill sprints, prowler, sled dragging, etc
3-complexes and stuff like that
Mix it up, personally I train 4 days a week, and like to alternate between group 1 and group 2 each day I train. Try them all out and see what you like and dont like, then do some coniditoning AFTER you lift weights for the day. I should warn you however, that you need to alternate some easier stuff from group 1 every other day, or ull burn yourself out.
4th- dont forget to stretch and warm up. Get a foam roller from elite fts (google search) and roll on it each day as well as stretching. You'll be thankful.