Alright, so Larry and I found a solution to t$$anonymous$$s, if anyone needs it. It goes like t$$anonymous$$s:

1.Create a new keystore through the Keystore Manager in Unity

2.Move it to where your keytool.exe is located, usually it's in C:\Program Files (x86)\Java\jre1.8.0_181

3.Open Command Prompt

4.type in cd\

5.type in cd "Program Files (x86)"\Java\jre1.8.0_181\bin

6.type in keytool -keypasswd -alias [your alias] -storetype [your storetype, probably jks] -keystore [your keystore file name, include the extension]

7.type in your keystore password between single quotes (important)

8.type in the key password that you typed in Unity (without any quotes)

9.retype it

10.If no errors show up, go back to Unity

11.Check the "Custom Keystore" box

12.from now on, order is extra important

13.Select your keystore file name (not browse) in the dropdown below the checkbox (if it doesn't show up, change the Dedicated Keystore location in Edit > Preferences > External Tools to the one on step 2)

14.Type in the keystore password that you used when creating the keystore in the keystore password field

15.From the alias dropdown below, select your alias

16.Type in the alias password that you changed to in the command prompt (if you used the same one as before on the command prompt then use that)

17.After both passwords are in, change the keystore password to your keystore password but between single quotes (for example, if my password is ab1234, then it would be 'ab1234')

18.Click Build in Build Settings

19.Enjoy your build!