There are major tips to losing weight and exercising to lose weight in particular.  For starters, the longer the better.  Yes, the generally accepted idea is that you should exercise for 20-30 minutes to get the maximum benefits for your time.  But realistically speaking, the more the better according to more recent studies. 

 Second, never exercise on a full stomach.  Frankly, you can.  But it can cause serious cramps and make you feel sick in general.  Eating before is fine.  But just don’t eat until you’re full is the basic idea.  Eat small amounts if you are going to eat right before. 

Finally, use caution.  Yes, you want to lose weight, you’re motivated.  But don’t overdo it.  You won’t be doing yourself any favors realistically speaking, especially when you hurt yourself and as a result can’t even exercise for a while.  That really doesn’t help anybody in the grand scheme of things.  So these are all basic things you can do to help yourself to lose more weight and get the maximum benefits of your exercise.  It also helps of course to do the right exercise for your needs.  It has to be something you enjoy to start and then something that is actually burning calories and working with your body type.