I'd like to back up what sister said, about your feelings being valid. Feelings are not right, or wrong, or a waste of time. They just are. You feel how you feel.

As to whether or not to see a T, I would suggest that you keep it in mind, for a few reasons. (1) You sound like you might want to, which is a pretty good sign that you might benefit from it. (2) Underlying sadness. That can be hard to get rid of without help, and really keeps you from being able to enjoy life fully. (3) Difficulty identifying how you feel. Therapy can really help with making sense of and understanding yourself and your feelings.

You deserve to be more than just "moderately okay." You aren't wasting anybody's time, any more than any of the rest of us are.