Would mining with my computer make sense?

Depends on the kind of hardware your computer has and how powerful it is - get acquainted here (https://www.getmonero.org/get-started/mining/)

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Which pool is a good idea while mining XMR?

They recommend P2Pool, but sometimes a miner might have a different choice - https://miningpoolstats.stream/monero

Which Monero forum can support?