Great feedback but still rejected?

I went through the final rounds of microsoft recently and the recruiter got back to me with this email: "The team did decide to go with another candidate for the role. You received great feedback and

I went through the final rounds of microsoft recently and the recruiter got back to me with this email: "The team did decide to go with another candidate for the role. You received great feedback and the hiring team agreed that you would be a great addition to Microsoft I also added you to our talent database which allows you to be more searchable for other recruiters" I don't know what I did wrong. I answered all questions in all 4 rounds. Aced system design and even solved a leetcode hard in 15 mins. All 4 interviewers in the final round told me I would be a very good fit for this role. I don't know what better I could have done. I'm losing hope in myself and my abilities as a software engineer each passing day. I can't do this anymore. The previous role I applied to was an SDE position in Motorola. I got through all the interview rounds and then was informed the role suddenly closed due to budget reasons. I'm normally a cheerful person but now I haven't left my room in 7 days. Might be falling into depression. I don't know what to do better. I don't know what I could have done better. I want to give up. I don't want to be alive anymore.