How can I motivate myself to exercise?

Be aware of what your goals are and then move through no matter what others say and what helps me, for example, is that I sometimes think of what person have said and the bad words simply take better than the people who have said it. And otherwise I often just like music

Find a sport that's fun for you. There's nothing to force yourself to sport. At some point, the will leaves and you stop playing sports if you have no pleasure.

The best way to try some things in your regional sports club.

For this, there is only one proof that can do

(Make yourself undressed in front of the mirror… How do you like to see you?)

Do it because you want it and not to please others

Yeah, you should want it yourself. But that will actually take from your question.

Finally, you have to want it because of you, but sometimes it helps create a banal first motivation

Then/so you have your motivation…