How do I have a more positive outlook towards work?

I’m a middle manager in a job I always dreamed of.

After being a failing drop out at school and a young single mum I decided to sort myself out. I went back to school. I am now head of curriculum for college kids. I teach some hours and manage a team. The subject I teach is active and when I’m at work I’m this crazy person full of energy. Last year I got sick out of the blue. I became at the time severely disabled. I was in a wheelchair with no cognitive function. I was trapped in my own body still aware of what was happening but unable to converse etc with people. My worst nightmare was happening and I was going to be condemned to my home and being cared for. I just wanted to work again.

As per usual for me I fought it. While my disability will always be there I’m back working my job. I feel I should have taken more time as being in that state has mental repercussions. It was literally in the blink of an eye my body gave in and I lost it all. The strain of knowing your body can betray you like that and it can happen any second just scares the living daylights out of me. At the worst of my disability I suffered severe tardive dyskinesia and it stopped me from sleeping for 2 weeks straight. I’m truly scarred from the whole thing.

Anyways I’m happy with my life. I’ve just had a wonderful weekend and I’m thrilled my energy is coming back. It’s just the Monday morning blues hit me hard and I’m scarred I won’t be able to do it. The event happened at work. I was in the classroom talking to a student and it literally felt like an earthquake and next minute I was gone.

I just want to be happy at work rather than constantly pining to be at home in my safe space. My staff and managers are lovely and help me do things I struggle with. How do I feel happy at work?