I dont know how to increase my Skill Force.

[Nidaime7000]

Ive been trying for so long to find someone to help but no body wants to help me xD I have no clue how to increase my skill force

[HelixDraxzonyx]

Levelling the skill increases the Skill Force, but only by a small amount. What you really need is a magatama that boosts skill force. If you are a Sword user, you need magatama such as Kougasha and Amara. Make sure that the Rank of the magatama is below or equal to the rank of the skills for your weapon. For example: Amara provides a skill force boost to sword skills of Rank VI or higher, so if your highest skill is Rank V, that won't do any good.

Once you have the appropriate magatama, be sure to use Kaguya's "Goldy Ornamentation" (assuming you have that unlocked for her). There are many ornaments that increase skill force as well, albeit fractionally. Magatama have two slots for ornamentation. Once you clear Kyoto, you get Amaterasu in your party. Levelling her up (using Friendship Pendants and Friendship Beckoning Cats) expands the number of Titles available for you to succeed. Titles again can be used to increase skill force, but I think there's only one or two that do that effectively. Most seem to be geared towards boosting your stats and affinity rather than skill force.

Lastly, there are some weapons that come with small boosts to skill force as well. Enhancing them to higher levels (and smelting them) can provide another small skill force boost. It may only be small, but if you stack all of these boosts together, then it all adds up to a big boost overall.