It's only profitable to mine if you have free or dirt cheap electricity.
I'm not a miner, but I've certainly read enough about it here and have seen tons of videos on Youtube. My understanding is that even if you have free electricity, it would still take a long-ass time to recoup your investment on the required hardware. That's if you're just starting off right now with no mining equipment. Bitcoin is definitely not profitable for an individual to mine unless all the hardware is paid off and electricity is dirt cheap (Philipma1957 would probably say the same thing).
All of this is why I took an interest in proof-of-stake coins, which doesn't require anything other than a desktop computer in order to earn coins. True, it's not real mining but I got into the game extremely late. Wish I'd heard about and taken an interest in bitcoin years ago.
I have 4 cent kwh and its boring now. Still profitable but I can't find a reason to expand my mine, I have 100 amp service maxed out at 80 amps and even with cheap electricity nothing is looking great. I wanted to run a 400 amp service but i really can't find a good reason. 90% of my gear is 3 years old expect for a few z11s and so its all paid off, I should sell my gear.
Pardon my ignorance (which I freely admit), but what are you mining?