Welcome to Steemit @boyhaqi! :c)
Wanting to learn is even better than wanting to teach - but I suspect that you have plenty of valuable stuff to teach also (mechanical engineering sounds interesting). :c)
We all start out as newbies so plenty to learn here. The first step is to establish your personal brand.
Since you're new here, a quick read through this post may prove helpful.
Thanks for all his suggestions and feedback