If you are in a position to retire a bit early - I'd go for it @KayB55 - I was 50 when I stopped work - and have had numerous health stuff ups between then & now (age 68 now) including both shoulders needing major work ..... then BC .... so would have hated to still be working thru everything.
What area do you live in? (Town/City?) You can add it to your profile, then members may know of groups you may like to check out and/or join? If you love singing, many towns have choral groups (or uke groups) where singers are appreciated ..... we entertain at Aged Care centres & invited to perform at many places (we have a 50th birthday this coming Sat.) It is about meeting new people, learning new skills and just trying new things. If they don't suit - move on & try the next one.
As @iserbrown said - it sounds like you are a tad burnt out - and in need of a break. Can you chat with the helpline here - they may have some coping mechanisms to help you out. Are you doing a uni course? Can you defer it for a term or two - or next year? Do what you have to do to get thru this year a bit easier without so much pressure on you?
Take care, big hugs xxxx