I quit and sold all my gear 10 years ago. I was never very good, much in the vein of a root note monkey.
Anyway sold my stuff and always thought I might have done the wrong thing.
4 months ago bought small set up. I'm still rubbish but really determined to be a better player this time. Last night spent 2 hours trying to nail what sounded like a simple riff, and failed but, I'm not going to give up. My technique can be ropey, fret buzz caused by not pressing down positively etc.
The one thing that is a lot better picking up the bass this time is the internet. Take this forum for example, then there are all the resources with regard to theory and teaching on-line, wish they had been there when I had started.
So pass all the waffle, if you have enjoyed it in the past, then it is probably the people you are playing with. ( I also hate when guitarists go ' play us something then '). I wouldn't give up, but ultimately it is up to you. Maybe just give it break for a while.
By the way, anyone know of any bands needing an ageing bass player, who is not that hot, in North Devon?
£75 for the Shuker if you do decide to give it all in.