You say that bitcoin is illegal in your country and also altcoins are illegal, yes?
I think that creating a cryptocurrency isn't an illegal thing and you won't be arrested but what about to use VPN at the same time? There is much illegal things and people are doing that but no one is arrested.
And while you are going to make cryptocurrency, are you doing it alone or do you have a team? Can you develope and make a known cryptocurrency?
rather than making a new cryptocurrency it is better to manage existing ones, besides the risks that are obtained if making a new one is very large, but we also have to see the crypto potential that we make whether it is acceptable or running, because introducing something new is very risky the loss is very much, if we use existing crypto, we can avoid potential losses by looking for coins that are really good, don't look for problems that we should be able to avoid.