Bhagti is the path of Love. Real Bhagti is the path of the Lover/ Spiritual Warrior. What matters the most is Love. Experiences come and go, it's normal- they come to show us that we're on the right path and to keep going. The Bhagti (Lovers) path never ends- it continues into eternity. The Gyan is in Guru Granth Sahib Ji- the words/ Teachings in it came straight from our Gurus mouths. When you read it, see which Guru has written the passage you read and believe that it's them there in that moment- teaching you personally- speaking the words to you. When you think of the Satgurus- they sense it and their presence is with you. They never actually died- they just continued and are still around.
You're not alone, we are not alone. God runs through our veins, His power/ Being is what wakes us up in the morning, keeps our heart beating, He's our food, our water, the trees, the earth. He's all pervading and we only exist, live, breathe by His Grace. Without Him the Khel would shut down. We delude ourselves and ignore this fact/ His Presence- although Gurbani clearly teaches us this. Accept that He is everyone, everything, everywhere, He's every word said by everyone, every thought, action and you'll feel more at peace. He is the King, Lord and Master of this earth and all humans in it- noone can override this fact. So bow and Love Him. Serve Him with the naam- by applying Gurbani to your everyday practical life- being a good soul, doing bandgi and good deeds.
Don't be upset, have faith and keep going- He's is there and sees you, I assure you. God bless you.