Here are some resources if you are interested in learning math.
Khan Academy. Probably one of the most well known websites for teaching new subjects to students. Teaches new topics step by step through video.
A compilation of free online math resources, compiled by the learnmath subreddit on reddit. A collection of resources provided by a community focused on helping others learn math. There is little description of every resource, so I cannot clearly indicate which resources are better.
MIT OpenCourseWare. Electronic versions of classes that MIT has released for the public. These courses are at the undergraduate/graduate level.
Wyzant is a tutoring company. They provide some very basic lessons on different subjects. For math they introduce topics from elementary to calculus level math.
A post in the “math” subreddit. Thread is about a person trying to find the best textbooks for various math topics.
Community colleges around you. If going back to school is an option, then a usually affordable choice is to find a community college around your area.
If there are additional resources you would like me to add, then please contact me and I will add it to the list above.
mathandlogicfun 