Lotta comments here talking about vitamin D. It’s not going to hurt you, but the evidence that it improves mood is pretty slim at best to be honest.
Happy lights are great as is spending time outdoors/moving around. Try biking or walking to work if you can.
You can take antidepressants just during the winter or year round if you end up liking them. I didn’t even feel depressed but got on an sri for anxiety and it really increased my energy and concentration.
Other than that, taking care of yourself in general, seeing your doctor when you need to, etc. Any unmananged chronic health conditions you have can make you feel worse in general. If you’re a young person with a uterus, you probably have iron deficiency which can really affect mood and energy.
Yes, it’s definitely an option, at least in the US. Of course, some people prefer to just stay on it year round exactly because of what you said. Just depends on what you prefer.