Currently Bitcoin is ready for halving and that means that the reward that one use to get for mining will be halved. Bitcoin mining also need high power, solve complex hash problem and you need to have GPU or an latest gen ASIC.

You can know more about halving: https://www.youtube.com/watch?v=GNFMIXNW48I

Instead if your aim is only about time that you have in the lockdown time you can gain knowledge on blockchain and cryptocurrency. Then once you are able to get enough knowledge you can probably become blog writer, trader, start your project etc.,

You have signup for Bitcointalk so that you can ask any question while you are exploring this technology there are many specialist here they will give you much detail insights.