Locked out of my Galaxy S5

[AC Question]

Was working with Water and Chemicals and tried too soon to access my phone with my fingerprint ID. Tried too many times and it's asking for a password (which I haven't used since setting it up 2 years ago and have forgotten). I tried an online "pinging" thing and it would ring my phone but couldn't locate it... I've tried every password I can remember for the last 2 years and still can't get in. Don't want to lose all my data... HELP!