Hey prashant I went through your post and I feel at this age this is something that happens with most of us and I believe it is happening because you’re low on self esteem and confidence.

What I would suggest is if you really want to live your life in a positive way, you should start reading some inspirations quotes about life on daily basis and also start meditation as doing this things will guide you and also provide clarity of thought.

Of course things will not change over night, but eventually you’ll see some positive results for sure and if you can read on meditation on the web there are many helpful guides.

You can follow this guide here http://dev.tinybuddha.com/blog/8-ways-to-make-meditation-easy-and-fun/ it wil help you.

Thanks and regard.

Manish Yadav