I've had very low times in the past and could tell a sad story, and used to wonder what the point of life is. Years on and after much thought and reading etc. I've found a peaceful place in my mind.
Think of cats, they hunt, eat and sleep for hours, and know how to 'be'. They do not worry about achievements and if their life is worthwhile, just do what they feel like when they feel like doing it. They can provide immense comfort to their owners who love them so much, so their lives mean a great deal. We could do with lowering our expectations of ourselves and know our lives mean a lot to others.
I am very content with the things I have achieved in life and the [few] strengths I have . My driving forces have been my 2 sons, creating a lovely home/s and garden/s, my grandchildren, [enjoying life with partners/friends in the past] keeping myself as healthy as possible and always counting my blessings.
I enjoy little things, so many every day: nice weather, pottering in the garden, a walk, greenery, a conversation, every meal, a good book, a good tv programme, a film, music,
my crafts...Wimbledon at the mo! A simple life can be full of lovely moments which make life worth living. If you notice.
I'm on my own and have been for years, so I think having a partner/husband besides you is a great achievement as It hasn't worked for me. I don't think we should take anyone, friend, spouse, partner, son or daughter or grandchild for granted. But I do appreciate it is much harder to feel blessed and happy with life when in a bad situation [work/home/relationship] and/or having very poor health problems. Then you need a lot of support so never be afraid to seek it.