Dealing with constant rejection and hopelessness

Im a recent graduate, and just got rejected from a position at an engineering firm after two great interviews where there were literally no other candidates. I reached out to an industrial hygienist to ask about her career from the position of someone who majored in ecology and during our talk she said she wanted to bring someone on and was interested and then I went in for an interview at the office and met the president and walked around the office and met the team. It was almost a picture perfect interview I got along with both her and the president and was much more comfortable and confident than I have been in the past. Then yesterday I reached out a week after and she said that they were "going to wait to bring someone on at this point". I feel like no matter how hard I try or even how well things seem to go, nothing is working out. I am transgender as well, and the only thing that I think indicates that is my sometimes lower voice so idk maybe they thought that was going to be a problem. I did get an offer to work fulltime in my undergrad lab but it would pay me much less than I am making working at a fancy coffeeshop (28 per hour) that would last for 6 months and I want to do a position related to my degree but I also dont want to be literally living in poverty anymore. I got that rejection 10 minutes before I had an interview yesterday which actually went well except I had a like 10 second pause when my brain blanked on a question. I know this mostly just a rant but it actually feels awful to put in all this effort for what feels like no results