There are strategies that are safer than others with reasonable profit and since you are a beginner it is better to learn the easy strategies and by developing yourself a little you will be able to make all the difficult strategies easy.
Before you start learning to trade, you should know the basics, such as how to create a wallet, protect your private key, reduce fees when sending, CEX & DEX platforms and the best suitable platform based on your country and payment method.
I recommend you to watch @aantonop YouTube channel
[1] to learn the technical aspects, and then you can ask here about the best platform for you.
Now let's talk about the trading side:
- Dollar-Cost Averaging (DCA)
[2]: It's perfect and simple, set a specific day and then buy a fixed amount of bitcoin.
- DCA with support and resistance points: it is a little more difficult and instead of setting a fixed time, you rely on the support and resistance points
[3].
- Buying at once: It depends on the price collapse by more than 20%.
- Day trading: It is the most dangerous way and the difference between the prices of cryptocurrencies during the day.
- Leverage and Margin, DeFi and Low MarketCap cryptos: Not recommended.
[1]
https://www.youtube.com/user/aantonop[2]
https://www.investopedia.com/terms/d/dollarcostaveraging[3] in short, when the price drops by more than 15%, you buy more