Some simple, humble suggestions to address the part about "how can I find other people like myself..."
Talk to more people about this (you already took the first steps!)
Read survey papers, ask questions on both MO and math.stackexchange on your path to (re)-discovering your interests.
Perhaps try to found an informal mailing list for mathematicians similar to you, with maybe a local meetup group. See if creating such a group via social networking sites helps.
Maybe send emails to math departments, telling them about your "math club", and request them to circulate it to the target group of mathematicians you want to connect with. This requires heavy emailing, and the results will be sparse, but not zero.