is it too late for me now

i mean to find a partner? im nearly in my late 40s and missed out on finding a girlfriend because i had a lot of problems in life , mainly relating to mental health....i wasted opportunities, pushed people away and walked a very dark path in life...i did have a few flings with girls in my youth, but never had an official partner.

now i live alone, lived alone 19 years and worry time is gonna run out on me? to find someone...i'm trying to improve my life by going swimming at the leisure centre and perhaps do volutary work in the future.

but what can i do? i'm middle aged now...most women won't want a guy like me with low social standing....i lost touch with any friends i had from the past also.