The 25 word mnemonic seed provided by Cake Wallet is compatible with MyMonero. However, MyMonero will have to scan the full blockchain looking for transactions that belong to your wallet. This is quite resource intensive and therefore an import fee of 0.1 XMR is required, which has to be paid by another wallet. Put differently, it cannot be subtracted from the current wallet. Note that Monerujo, another third-party Monero wallet for Android, does not require an import fee and the seed is compatible.
but cannot remember the exact date I created the wallet
First note that for a wallet like Monerujo, you'd have to use a
Restore height too. If you don't remember the exact date, you can use an approximate date. If, after the wallet is fully restored, not all transactions show up, you can always redo the process with a lower
Restore height. A list of sensible
Restore heights can be found here by the way:
What is the relevance of the restore height?
I have not started the recovery process because it looks a bit intimidating
It is not particularly intimidating if you (i) choose a sensible
Restore height and (ii) diligently go through the steps. That being said, if you need any help, you can always open a new thread on r/monerosupport and the community will help you out.