If you’re just starting out, then getting in the 30s might not be realistic, I’m sorry, but you can be consistently under 50 moves, and without using NISS / inversions or psuedo blocks or insertions or whatever.
-The three biggest concepts you need to know are 1) Blockbuilding 2) EO 3) Corner Comms
-EO is probably the easiest to learn and be good at, search up ZZ EOline tutorial and you will know EO very well.
-Commutators are next, somewhat easy to learn, but slightly less useful. The most common use of commutators are Corner comms for Last 3 Corners, an example of one is R’ D’ R U2 R’ D R U2. If I were to kind of explain it, you put a corner where it goes (R’ D’ R) then move it over to replace it with another corner you want to solve (U2) then undo what you did, which restores everything else on the cube (R’ D R U2).
-Blockbuilding is by far the most useful, but isn’t as simple to get good with. Everyone knows what this is but some people are better than others. Two resources are
Block Trainer and Cube Explorer. I’m personally more experienced with figuring out blockbuilding tricks on Cube Explorer than Block Trainer, but I think both are good.
Oh also some more tips for blockbulding is 1) Be color neutral, of course. Be able to expand blocks in any direction. 2) Always focus on solving more than one piece at a time.
A good goal for blockbuilding during FMC for YOU might be ~6 moves for 2x2x2, max 8 moves. If you decide to start with 2x2x2, (you don’t have to though) then don’t let yourself keep going unless it’s 8 or less.
-A random note about FMC is that doing the same thing everytime isn’t efficient.
Here’s a quick example solve, something that I know you can do if you learn and improve a bit, I’m keeping the techniques here simple-
Scramble: U' R F' U D R2 F' L2 U2 F2 R' D2 L F2 R F2 D2 F2 L2 F' L
B R F L2 D’ // 2x2x2 (5)
R’ U F U F2 // ->223 (5)
U {F B’} R {F’ B} // EO (6)
U’ R2 // Square (2), now at EOF2L-1 at 18 moves. For you, I’d set a goal of 25 moves or less for EOF2L-1
(y) R U2 R’ U R U R’ U2 // Edges + 1corner (8) (preferably you want Edges+2corners so you can do corners with 1 comm!)
(x’) R’ D R U’ R’ D’ R U // 1st Corner Comm (8)
(z2) R’ D R U2 R’ D’ R U2 // Last 3 Corners / 2nd Comm / Finish (8)
A good goal for Last Slot / L10P would be 25 moves or less. In my example I spent like 2 seconds finding a solution so that’s why it’s not like 18 xd For last slot, do a quick check to see if doing Pair -> last layer is easy, because sometimes you might be PLL skip or whatever. However, the FMC way to do EO Last Slot, is Edges + 2 corners and then L3C with one corner comm.
There is a whole world of FMC about Kociemba, which I use more often than the “traditional” way (EOF2L-1, E’s+2c, L3C)
Kociemba Phase 1 reduces the cube to a [R2, L2, F2, B2, U, D] state, which solves EO, Corner Orientation (CO), and E-layer placement. So after Phase 1 it it looks like you have two “Guimond sides”, or some people say it looks like a Domino Cube.
I won’t go too in depth about it, but here’s a quick example of what it might look like, using the same scramble as above-
Scramble: U' R F' U D R2 F' L2 U2 F2 R' D2 L F2 R F2 D2 F2 L2 F' L
(y' z2)
F D' R' U2 F' U L' // Edge Orientation + Kociemba 2x2x3 (7)
R U' R' // Koce. “F2L-1” (3)
D' R U R' U2 R U R' // Orient L5C (8)
PHASE 1 TOTAL- 18 moves
(y') D L2 // 2x2x2 (2)
U F2 // ->2x2x3 (2)
R2 [U' R2] // F2L-1 (1, because cancelled moves)
[R2 U] f2 U' F2 U' F2 R2 F2 R2 U2 f2 U' // TTLL/L5C FMC algorithm (11)
Phase 2 total- 16 moves
34 HTM
Hope this helped, good luck with FMC!