Updating a WordPress Theme that I already work on it.

I will be honest here:

I currently use a cracked theme and I have the intention to buy it in a few days (I was too young to have a credit card and my parents did not want to buy it for me). The theme version I have is getting pretty obsolete, but I made important modification on the website and I don’t want to lose my changes. Is there anyway that I can update my theme manually without losing my changes?

I use Jupiter 4.2, the current version is 4.4.4 (the 5th is coming) and I use obsolete WooComerce files that were coming in the template.

Don’t judge me, Artbees REALLY deserve to be paid and it would be sad if they were not. If you have WPML equiped, it is definitivly a template that I would recommand to you. It works perfectly!

Thank you for your answers (and I’m sorry Artbees… I will free myself of my debts) !