If you really want to mine, then join the mining pool. Some mining pools will distribute the income according to the computing power after mining the coins, but I think the income that can be low. Of course, it is not impossible to mine by yourself. This mining is originally a problem of probability. If you are lucky enough, you may dig one in 1 second, but the probability may be the same as buying a lottery ticket, or even lower. If you want to mine cryptocurrency without upgrading the hardware, it is recommended to switch to a mining pool that uses a POS consensus mechanism.