What if I am not able to buy bitcoin should I try Other's

[Noobguy]

The Bitcoin price is too high, and investing and trading for me is very difficult.

My only goal is to make money.

Should I try mining other crypto like (Ethereum (ETH), Solana (SOL), and Cardano (ADA)) or buy them and stock then price is down, and sell when the price is rising.

 https://coinmarketcap.com/currencies/altcoin-alt/

[Ponknot]

BTC is highly speculative and volatile so Dollar Cost Averaging (DCA) could benefit in long term.

[5W-KILO]

I am a bitcoin guy and I will never advice against Ethereum and Solana, because they have their use cases that they covered, they are both smart contracts projects and thanks to them we have millions of junks and spam tokens in crypto space, all I can say is these two needs more regulations than Bitcoin simply because Bitcoin stays Bitcoin, no room for people building nonsense via layer 1,2,3 or others.

Everyone is able to buy Bitcoin, those who have less knowledge about Bitcoin targets 1BTC, this is their crime, they don't know that 1 BTC can be pieces into many parts and get shared among many people. Blessed are those who seeks for knowledge everyday of their lives, those who don't stays with their outdated information for live, they get stucked in their old outdated believes.

[FP91G]

The Bitcoin price is too high, and investing and trading for me is very difficult.

My only goal is to make money.

Should I try mining other crypto like (Ethereum (ETH), Solana (SOL), and Cardano (ADA)) or buy them and stock then price is down, and sell when the price is rising.

 https://coinmarketcap.com/currencies/altcoin-alt/

Ethereum (ETH), Solana (SOL), and Cardano (ADA) are unmineable; they use a POS algorithm. Ethereum used to be mineable, but after the algorithm change, this is no longer feasible.
I think if you want to make money trading, you need to get some training. Otherwise, you'll quickly become disillusioned with cryptocurrencies.