Hello guys

it's LP here, nice to meet you and congratulation for the solid forum, I am reading it for a couple of days and it is full of valuable informations.
Anyway, as you can understand from the thread title, I am here because I have many business ideas but I don't know where to start from.
I have an ebay account with 150+ feedbacks, it's about 10 years old.
Then, lately, I had an expensive experience with Shopify as well (lost about 4k EUR on it), unfortunately I played with fire and I got couple of DMCA strike, after that I decided to quit.
However, I was talking about "business ideas", right?
There we go, I was about to start selling digital products, but before dive in this big ocean I would like to get all the information, because if I have to risk my personal account I want to do it for a reason ($$$), a good reason.
I see everyday tens of new listing with digital products tick out, often I start monitoring them and most of them get banned (?) very quickly.
The product I've mentioned are keys (for everything).
Is there any way to sell that kind of stuff without getting banned? Any suggestion?
Furthermore, about Shopify, I have a business idea for that as well, but to get that done I need a stealth account (paypal, shopify, bank account?), because I would like to do high risk dropshipping business (not scam, want to clarify).
As you can see I am a bit confused, what would you do in my position?
Thank you guys if you got until here

Any word will be appreciated