You can check out the interstellar wallet, it’s available for download on playstore, let me quickly run the features with you,

1  you can have up to 10 wallets in the same device, I don’t know if it allows more

2 you have the choice to create your own custom key with words you can actually remember

3 it’s easy to navigate through, a very easy for a newbie to understand how to use the wallet

And many more features to be discovered.

Go here to download it : https://play.google.com/store/apps/details?id=cm.fintech.interstellar

Disclaimer: Stellar.org does not own, maintain or operate any of these wallets.