Ultimately the choice is yours. Don't feel like you have to do something, but if you enjoyed it, and want to start it up again, then DO IT! As for the bullies, unfortunately that never goes away in life. Even in corporate career life there are some bullies who lurk around. You just gotta ignore, avoid, thick skin, be yourself, laugh with them/at them, whatever mechanism you use to get through your day. surround yourself with good people, busy yourself with activities you enjoy. Live life!
Only thing I'd caution you on, if you do incorporate the museum, you may have to watch out for intellectual property rights or copyright laws depending on what you actually do.
Chin up!