A mistake people who set out on the spiritual path often make is to think that after they've chosen to do so life will be smooth, even full of peace and love. They have turned their face godwards and he will smile on them. Such is far from the case. In fact, if you find it is, you are probably doing something wrong.
Sincere spiritual endeavour often leads to suffering. This is because once you have made the decision to lead a spiritual life, by which I mean not just to believe but actively seek to conform your being to the reality of God, you are accepting that your lower self, the ego-centred worldly me, must be fully converted to truth. This is not done through a simple mental inclination towards spirituality. You should be changing direction at every level of your being, abandoning mental and emotional habits of a lifetime or maybe, if you believe in reincarnation, several lifetimes. This is a hard task, not accomplished without a great deal of work. The suffering involved is that of the old self being burnt away, its ingrained tendencies, desires and fears, being uprooted and tossed on the fires of true spiritual love.
You think your relationships will be easy and pleasant after you have converted? That is by no means necessarily so. You might be faced with difficult people who bring out the worst in you. That's because the worst has to come out. It won't if you just mix with convivial souls and people who think like you. That might be pleasant but it's not spiritually creative because there's no challenge, no irritation to make the pearl of truth grow within the oyster shell of the separate self.
Peace may be found but it must be an inner peace. Don't expect your outer circumstances necessarily to be harmonious or 'spiritual'. By accepting God you are accepting to be remade in his image. Yes, he made us in his image at the time of our creation but this was a potential not yet realised. Besides, we are certainly not in his image now. The spiritual path is a path of trials and tribulations but it is these that root out the corruptions seated in the soul caused by the ego.
It is common that those setting out on the path experience uplifting moments at the beginning of their journey. This is to give them strength, to confirm them in their decision to embrace the spiritual life and because of the contrast between their old mind and the new one. But after the joy comes the work and this may last for the rest of their lifetime with no comfort offered. Accept that with happiness. God is paying you the compliment of thinking you equal to the struggle. The rewards after this life will be out of all proportion to the difficulties you may encounter during your earthly sojourn.