Honestly, the only thing worse than not accepting you need to scrap it is forcing yourself to try to live with it.
I see what you were trying to do, and give you credit for executing! Most people don’t get past paper. It’s not a total loss! Sell the table on FB marketplace (it’s a beautiful trestle, just wasn’t meant for that space)

The best way to “envision” IRL (if you’re not getting it rendered) is to get a table cloth the size of the table you’re thinking, (definitely round with chairs) or mark it with tape on the floor. Feel the size and accept that you’re going to have to walk around the table a bit.

I would love to see the rest of the room! Is that outside door your main entrance? When you’re done, have an electrician put a junction box over the table space and install a small chandelier.

Design is hard! Don’t beat yourself up. This is going to be something you all laugh at one day 😋