Guys, I really appreciate your responses so much.

I just started my dissertation process, I have not chosen my topic, this semester I will chose my topic. Choosing topic itself can be a challenge. If anyone has completed or close to completing Ph.D. then please share your experiences or how to succeed.

No publications so far, I need to work on that too. Any advice regarding publications, dissertation or anything related to Ph.D?

I can apply for a GC through Ph.D. while I am on TPS right? I have to get my health on track because I am losing it.