What do you do to lift yourself up?

If you’re down. I find myself in a bored state of mind. I have vacation and I don’t do much, but I feel like I should be doing something. I just don’t know what it is.
When I’m out, it’s not the best. When I’m home, it’s not the best. I just can’t seem to relax in my mind or just have it nice.
I used to love a lot of time just relaxing, doing what I felt like, but these days I don’t feel that way.

What can I do to become more happy and positive and appreciate my vacation more? I feel like life is boring, but I know it’s not.
Do you know this feeling and if yes, what can you do about it?