The short answer is, you can’t. Brave is working on adding countries again and aiming to get things going by the end of the year for most countries. So you’ll just need to wait for your country to be supported again
If you want to see detailed information, go through my Topic over at PSA: Unsupported Region
You’ll see an Original Post and all the Updates I’ve released weekly. If you skim through all that, you’ll know more of what’s going on.