Work out 3 days a week, it's enough.
1st day - Exercise you arm muscles (bicep, tricep etc)
Since you have 5 pound weights you can do simple curl exercises.
2nd day - Shoulders, your chin up bar is perfect for shoulder exercises.
3th day - Legs, squat exercises, running, etc. Run at least 8 min.
If you ate something then wait at least 1 hour before starting working out and avoid drinking/eating milk products...it can make you feel sick during the exercise.
It's really important to warm up before starting, you can run for about 8 min and after that stretch you arms, legs, etc.
And since this is your first time don't push yourself too hard, 2 series of each exercise (for example: 10 pull-ups, take a break, 10 pull-ups again).
When you are done, take a shower and eat something
(sorry for my english)






