If one coworker refuses help, ask another one, if they do too, ask another etc. With this aspect I get it that we should ask for help and not bear all the weight alone. Come on, I've helped so many people that later turned against me, it felt like they ar eusing me, suck all my time and energy and disgracefully discard of me once their situations improve. I learned to avoid extra weight, it's their path/lives/etc. Who will help me? No one, so I will not help others with anything else rather than empathy, smile but just in passing, from a far. Broken people are not entitled to my time and energy, so I am learning not to try and fix them, now when I see the red flaghs I am the one that discards them. Or keep them around but refuse to talk about unpleasant things and since all they do is complaining they move on looking for other saviors. You can't learn self-love if you're always someone else's therapist and doormat.
I do help people with little things at work, but not as much as before as I was going crazy by the work overload. Now I learned to know my limits and say "No, I am busy". I am also like most Greek people I know - I prefer doing most things on my own pace, slowly-slowly
When I was rushing around, chasing god knows what it felt like I was becoming more anxious and running away from life. Now I try to treasure every moment like it's the last and I feel more satisfied. And a part of that includes saying "No" to extra work I know will overload me. I am not perfect so why act like I am and can do anything, I can't. So maybe guardian00angel, he just was overloaded by this time by the requests by others and decided to start saying "no"? You also have the right to say "No", and as a Venus/Saturn person you have to learn to set boundaries.