Please do not "compress" or "uncompress" your private keys. Your wallet should already define what kind of keys it is by generating the appropriate private keys and you should not do anything beyond simply importing it. Converting it between various formats could potentially result in the loss of funds. For example, using uncompressed public keys for bech32 results in a non-standard address.

If you want to have a different address, generate a new key using a wallet and don't do any conversions.