Should I try to force this plant straight?

I found this plant on the side of the road a couple years ago. It was standing straight up with two leaves at the top. I stuck it in this corner and it’s been thriving. Growing branches and all. With searching for the light it started to lean very a lot. Should I try to straighten it with a stick or just leave it be? I never open the blinds but it is still growing. Will it eventually break?