Only one right now, but I'm slowly trying to learn Japanese, Sindarin (and the writing system, Tengwar), and Irish.
It's slow going and I'm thinking I'd do better by focusing on one for a while and sort of learn in shifts than I am by trying to cram them all in at once.
I took Spanish in both high school and middle school, but I don't remember much of it anymore so I may try and work that into the schedule.
I also have plans on adding in German and French if things go well enough.
It's an almost entirely impossible goal of mine, but I'd love to learn literally every language it's possible to learn. xD