if you mining using your laptop, I have a bit questions:
1. how long have you been doing mining using a laptop?
2. how much your profit?
3. is your profit greater than your electricity cost?. if you have free electricity or your parent paying you the electricity bill.(skip this question).
1. Only been mining with my laptop for a month.
2. Depends. If you're talking about current value, I'd say I'm slightly in the negative from electricity costs (and of course, this doesn't assume any wear and tear from the machinery). But we're in a bear market. If Bitcoin was 2x what it is now, mining with my laptop covers electricity costs and a little profit.
3. See 2. But then again, if i had solar panels or water power, then it would be pure profit. I'm pretty sure my laptop can last years if all it did was mine CPU.