In my third year, i had to change my phd supervisor. I have started in a new group couple of months ago but can not concentrate in my new group. I feel like mentally drained out, i feel I can't do this for another five years. But deep down i really want to do my phD. I'm in my thirties now. Did someone had similar experience? Should I quit now?

Hi, i am a second year phd student and have three more years left of my phd program. The thing is i love my phd topic but my professor wants things fast. All my groupmates are pretty fast but i need time to think about things. I don't have a comfortable relation with my professor. However, working hard i already have some good publication but nowadays i am getting overstressed due to work pressure ( work load is not that much but he wants things quick that puts me into pressure). What should i do? Thanks for the suggestions

Hi, i am a second year phd student and have three more years left of my phd program. The thing is i love my phd topic but my professor wants things fast. All my groupmates are pretty fast but i need time to think about things. I don't have a comfortable relation with my professor. However, working hard i already have some good publication but nowadays i am getting overstressed due to work pressure ( work load is not that much but he wants things quick that puts me into pressure). What should i do? Thanks for the suggestions