Bitcoin mining at home was incredibly easy from home over a decade ago when difficulty was low. Even a simple computer was able to mine couple of bitcoins every seconds.. Now bitcoin mining can only be profitable if you invest in the right tool. Today, a very complex miners are required to mine a very few sats per hour. Mining is nothing but solving complex algorithms to generate new bitcoins and add existing entries in the ledger. The greater the hashrate of your miner, the greater would be your profits. You should probably get hands on some great ASIC's to generate income from mining orelse you would end up spending more in electricity bills.
There is some truth in what you say, it's a little bit okay, but nowadays bitcoin mining is quite expensive because the mining rigs like Asic are expensive now.
and the most important thing is that your electricity consumption should be cheap because otherwise, no matter how good your Asic is, your profit will only go to paying for your expensive electricity consumption, that's the truth, so others say it's better just buy bitcoin instead of that.