Welcome! Do work out your hair properties (see the Live Curly Live Free site) and consider your dew points/ humidity (Curls on the Go smartphone app or Frizz Forecast on the main NC site).
Split ends do need trimming off, that hair cannot be salvaged and damaged hair will catch on healthy hair higher up damaging that too. Beneficial ingredients for damaged hair include coconut oil, ceramides and panthenol; coarse hair tends not to do well with much protein.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.