At present I am using mathematics as a hobby. I do have good entry level maths behind me, or maybe a little better.
I have always been a very 'block' learner in the past but at the moment I am just having fun. I look at posts and sometimes join in and other times just look and learn. If I see something new and interesting i google it and then just follow where it takes me. I have found a lot of very good you tube clips and I know that there are a lot more out there. I am also very interested in teaching mathematics and I am finding new and better ways of doing 'old' things.
Of couse many of the posts are over my head but that's okay. I just hone in on the ones that are at my level. I am learning heaps and it is a lot of fun.