How can I find out if my comments has been replied or liked?

Question

I mean is it true that I have to recall to which section of course I have commented, and then go exactly there to see if someone has replied? or there is some easier ways?

Answer 1

Whenever you ask a question or post an answer, you auto subscribe to the thread, so you should receive a notification whenever someone replies to a thread you made or posted on. To check if you are subscribed to the thread, look at the star below the question. If it is blue, you are subscribed to it. If not, click it to subscribe to the thread.
As for the likes, there is no notification for those, so you just have to regularly check your answers or question using the my answers/questions filter as suggested by the user above.

Answer 2

In the android application you can select "My questions" and "My answers" from the filter menu besides the search bar. Normally the "Most recent" filter is selected but you can focus on your questions/answers using the right filter.
Hope it helped.