Can I get it back?

So I made my website http://www.azzalobbies.com a year ago yesterday, but unfortunately I forgot what info I used on the namecheap account

I've tried multiple emails, with multiple password combinations, it is 100% for a fact my account, but would it be possible for me to create a combo list and crack the account using the emails and passwords I've ever had / created?

Or is there some other way I can get it back?

Why don't you contact Namecheap support? You should be able to recover your account by providing proof of payment and registration... Please keep me updated on this.

If you made it a year ago the domain has probably expired, make a new account and register it again.