I just want to end it all because I feel like no one loves me

I am a 30F straight female, and I just feel like no one loves me. Not friends; not family. No one. I have been really depressed lately about it all. I have been single for so long and can't get a date either. My depression and mental health was well under control until recently. For the past week I have just felt useless and so depressed. I feel so unloved.