Need urgent suggestions on mental wellness

Having a serious issue hence required suggestions I took WFO exception as I need to take care my new born baby at home, now my last project completed in August so I got call from my unit spoc just to have a discussion on my core skills n all, he didn't mention anything about the account name or what they are planning however I asked him to not tag me with any lead or managerial role as I need to also take care my newborn hence i requested that keep me to any senior technical role where I can contribute as IC,, ok then after I got selected from one of the account as Sr.developet, I started work there, I got their clients VM n all, suddenly my allocation has been changed from back-end from my unit stating you need to work in the account which we are planning for you, that time when my allocation happened that also done with coordination with one of the unit spoc only but internally they did not communicated, ok then when I joined my current project based on their plan, they give me project manager role plus they made me engegment owner for such a project which started late due to late team formation, deadline is fixed as they kept it as fixed cost project, client is not at all supportive to give support to even understand their requirements & from this side they parked their SOW without any proper BRD, TRD, PSD so I am being in a very tough spot since I joined this project, I tried alot from my end to make things works but delayed responses, scattered stuff out there made me frustrated gradually & i am in a stage where I kept on going on leave to secure my mental well being, I have also sent mail to my unit spocs, waiting for their response but want your geniune inputs on the same. Things are getting piled up also actually last year despite my high performance they gave me band C n then I also raised concern on that thru system but nothing happened So I am in a very rough situation which is caused by a financial & mental state. I wrote in my mail to them to release me from project as it's impacting my physical & menal health both. I raised this concern to one of them in person but then they tried to give me sense of support n all which I know not going to last more once I resume work again so inside sticking in loop i preferred to send mail only, awaiting for their response meantime I want your suggestions.