Which is the best exchange platform to use ??
For beginners I always recommend cryptopia, because they provide also many infos like coininfo and helpful threads on the forum. For trading/exchanging you needn't provide ID verification as long as you don't withdraw more than 5000 $ a day. Just have an eye on withdraw fees. They are on some coins very high f e. BTC. If needed, exchange your funds into coins with low transaction fees and quick stable network for example Dogecoin.