After tearing apart half the house, I found an old tablet with a bookmark to Coinbase on it. I tried one of my classic old logins and it worked!
Did this Coinbase account also have the ETH that you believe you had?
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
And does the 12 word recovery phrase that you have match the one to the Coinbase account?
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
From memory, the Coinbase
account (username/password etc) is custodial... whereas the Coinbase
wallet is not... and would be recovered with a 12/24 word phrase etc.
Are you sure you have recovered
everything? ![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
If you're talking about Bitcoin mining, you need serious planning (such as location, cooling and electricity cost) and decent capital (An ASIC cost thousand dollars, while PC with a GPU only cost hundred dollars).
Have you seen the cost of GPUs lately?
![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif)
Seriously tho... As the others mention, You need some heavy duty hardware (ASIC) for BTC mining. The only way to get Bitcoin with a GPU rig is to use a service like Nicehash which mines altcoin algorithms, but pays in BTC (after taking a slice of course
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)
)... or to mine altcoins directly with a pool and then exchange/sell for BTC.