Where do I buy bitcoin with easy exchange without scams?
I do use binance exchange to purchase bitcoin and Binance is a reliable exchange which I can recommend you to use it, but make sure you withdraw your bitcoin from the exchange immediately after purchasing it, don't store your bitcoin in exchange, no matter how secure the exchange is, always withdraw your bitcoin to a non custodial wallet.
Finally, should I do it now that the price is not stable or I should wait a little in case it goes down again? We are all here to learn.
I don't know your plans but if you are planning to invest in bitcoin for long term, then you don't have to stress yourself doing some kind of analysis, if you are waiting for bitcoin to go down more, then what if it those not go down, what are you going to do? Those that means you already left behind, some people saw bitcoin when the price was still low but they were waiting for bitcoin to dump more, but bitcoin didn't dump. The only people that should be monitoring bitcoin movement are trader's, but long term investors shouldn't stress themselves.