How can I use multiple security checks for unlocking screen?

Hey there,

I am on a Huawei P9 lite and using Lollipop (I think).
I want to secure my phone somewhat better by using two or more locks for my screen but I can't find any option to activate a PIN and a pattern or a pattern and a password etc.

Is there any way for a tech layman to do that?

The way to go would be to get a application manager with a lock.
So even after you unlock your phone, when any app is tapped to open, you will need to put in a password or other type of security key.

Try setting the launcher to be locked. If that works, the phone will come on, you'll unlock it, then you'll get a black screen until you unlock the application manager lock.