Bikes and commuting etc

Hi, I am not sure where to post this, im sorry if It shouldnt be here. I am severely depressed and desperate to get some.. freedom back. I can remove this post if not allowed.

I used to ride, had a nice road bike I could use regularly, that a friends father always maintained for me. I never learned about any of it. I know there are tubes in the tires likely ruined. This is my bike that has been sitting in a partially exposed shed for five years.

It is a bit rusty, and looks in need of a lot of help. Im asking my huaband if we can repair it to working order for my gift on mothers day, but as I look at it more and more, I just see dollar signs going up and up. But I know nothing.

do any of you folks out there, know if it might be difficult to restore? Ideas for resources? Im about to look up bike repair shops in my area, but Im afraid this repair might cost more than is reasonable as a mothers day thing.

I look at this and just, metaphor written all over it. This bike is to my life.

anyhow, would it be expenisive? is a bike tune up expensive? Im terrified for some reason. please help.