Hey there

Choosing engineering branch is tough because students get confused but I'll say do not choose any branch because most the students choose it or something like that. Choose the branch in which you have more interest in. Do research a lot about different engineering branches and choose the best for you. Between mechanical and civil both are different. Mechanical is a branch which deals with mechanical things or structures and civil has construction works so you need to choose between them which one do you like.

Check the link for details of different engineering branches

https://engineering.careers360.com/tags/engineering-branches

Good luck