If we are thinking the cost of following Jesus is too much, think how much it cost Jesus paid to invite us into His kingdom. It cost Jesus His life and his blood , is it not ?
If we think following Jesus is beyond reach or impossible or difficult if we try it on our own, you are right ! It is only possible through the help of the Holy Spirit. Jesus said without Him we can do nothing.
If we think the Holy Spirit is given to give us an easy life, consider after Jesus baptism, the Holy Spirit led Jesus to the desert/ wilderness. I believe the Holy Spirit is given to us for God's purpose.
If we are having some difficulties, this could be something that we did wrong or God preparing us for a harder assignment or promoting us.