I spent thousands of dollars of my mom’s debit card without her knowing

When I was a early teen I spent thousands of dollars of my mom’s money on Fortnite Skins, Minecraft Skin Packs, Robux, Random DLCs to games, Buying video games I wanted, and subscriptions to watch shows I wanted to watch. Given the thousands of dollars were separated between all of these it wasn’t 1000 dollars to each one. I don’t know exactly how much money I spent but it has to be thousands like possibly 4k something. I felt bad about it each time and I would always hesitate before pressing the button but I would always press it. It was like an addiction. Sometimes I would barely use most of the things I bought. I wish I could return these things somehow or pay my mom back somehow but I can’t. My mom one day found out by my cousin telling my siblings and my siblings telling my mom but I lied and said my cousin is saying it’s more than it actually is and I only spent 20 dollars for one Fortnite skin. My cousin told my mom I spent 500 dollars so he actually said way less than what I spent and not even he knew how much I really spent. I never told anybody how much I actually spent besides random people on Roblox and I’ve been holding that guilt for years. I have since stopped doing that and turned my life to Jesus. I plan on paying my mom back one day.