u/bigpp0069

Total beginner here, self learnt a lot from videos. Planning to join a gym in the coming week. It would be really helpful if you guys could help me with a few doubts that I have.

-Could anyone point out the most obvious mistakes that I keep repeating?

-How do I keep my guard up all the time? The guards non-existent, is there anyway I can drill it into my routine?

-My punches don't feel powerful, is there no kinetic chain being linked?

-My teep looks awful, how do I improve it?

-Anything wrong with my roundhouse?

Thanks in advance for any advice!