Congrats! I am very happy singing and dancing works for you. Now that you know you have a great tool to help you manage your mood. It is great to know that YOU, yourself, can do something to change it, isn't it?

As to the online I would be as concerned as Xacatecas. When I started working from home full time, I loved it (ah the glorious freedom, not having to get up so early, drive each day, etc) but in a few months I started changing, all my problems started getting worse, I was getting really unbalanced with my emotions, depression, etc. Now I have a roommate, we talk, we go for walks together, and I visit friends, and it helped to stabilize me.

If you decide to study online, please consider making arrangements so you have regular human contact with people, even if it is just one or two trusted friends or family members.