Struggling

Been single for 5 years, had to move to a new country because I lost my first job, stuck in my career trajectory because of politics, constantly feel like I make all the wrong choices esp when I see friends who are more auccessful, tired of living alone all quarantine. Feel like I'm always at the wrong place wrong time in life. I know lot of people would kill to be in my place professionally and financially but I can't help but feel frustrated and angry. I remind myself to count my blessings but this anger and frustration coexist. I've also seen a therapist for 5 months now. Does anybody else know how to deal with this?