I have a strong testimony that you can feel the Holy Spirit and receive guidance directly. Fasts, with earnest prayer, are an example we can feel the Holy Ghost more clearly.
46 Behold, I say unto you they are made known unto me by the Holy Spirit of God. Behold, I have fasted and prayed many days that I might know these things of myself. And now I do know of myself that they are true; for the Lord God hath made them manifest unto me by his Holy Spirit; and this is the spirit of revelation which is in me.
– Alma 5:46
1 There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
2 For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.
3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.
– Romans 8:1-4
1 The works, and the designs, and the purposes of God cannot be frustrated, neither can they come to naught.
2 For God doth not walk in crooked paths, neither doth he turn to the right hand nor to the left, neither doth he vary from that which he hath said, therefore his paths are straight, and his course is one eternal round.
3 Remember, remember that it is not the work of God that is frustrated, but the work of men;
4 For although a man may have many revelations, and have power to do many mighty works, yet if he boasts in his own strength, and sets at naught the counsels of God, and follows after the dictates of his own will and carnal desires, he must fall and incur the vengeance of a just God upon him.
– D&C 3:1-4