Squeaking typically indicates you're dry so add moisture. A good deep treatment might do the trick. Many of us do one every week or two.

Try not to let all of this overwhelm you. Your texture is much more important than porosity. If you have a coarse texture that will indicate limited use of protein. If it's fine, you will need regular protein. If it's medium you will need a little less than regular protein. In either case, you will take care of the porosity with some level or type of protein.

Just relax and take things step-by-step. I promise, the overwhelmed feeling will pass with each new success!
3b spirals, fine texture, normal porosity, dense
Deva Low Poo
Suave Naturals Coconut for detangling
Renpure Organics conditioner/leave-in
Homemade FSG
Curl Junkie Stuff

Nothing lasts, nothing is finished, and nothing is perfect.