I am a 100% self taught artist, so take what resonates with you and toss out what doesn't lol
Anyways, here's a kinda quick tutorial sketch for side profiles, if you can't read my handwriting it says from top to bottom:
-Brow Bridge(eyebrows go here)
-Center of eye(for "proportional" faces, the eye is usually centered just above the bridge)
-Philtrum dips into cupid's bow(philtrum is that weird ditch under your nose, you can kinda feel it with your finger how it kinda naturally slides into the cupids bow aka the top of your lip)
-Bottom lip has shallow curve that dips into the chin(compared to the top lip, the bottom lip has a softer "angle" to it)
You can usually play around with nose shape and lip shape from the profile view, it's probably one of my favorite angles to draw(when I have a good drawing day lol)
I made a very very rough comparison of what I usually do for side profiles and what you kinda have so far with yours? I think right now the bottom of the nose curves back up too much so that the phlitrum doesn't naturally slide into that cupids bow which may be why you're having some trouble there? I dunno! So far the proportions looks really good, I think it's just a matter of figuring out which angles and where angles and why angles
Anyways, I hoped this helped, and like I said if it doesn't make sense, pretend I said nothing here lol