I own a new UK LTD and I need some help

So I have formed a company lately as a Tunisian living in Tunisia, and I want to know if y'all got an idea about the tax complications and if I should continue doing it, or close it and open in a simpler country like Estonia?
Like what should I do to be fully compliant? What do I need to do in Tunisia? Can I bill the company development costs under a Tunisian auto-entrepreneur? Just so I can simplify pay out? Or do I have to pay it directly to myself?
What should I do with payee if I pay it directly to myself as a salary? Etc...
I have been stressing about this for 3 months, I have everything built up to start working with European clients and I need to know all of this, before I start trading.