Welcome to the Forum. Hope you sign up and join in the conversations.
The number 155 has many meanings, but I think the most important one is the reason God has awakened your awareness to it. God guides His children in many ways, and one very common way is through the repetition of numbers that are specific to the individual.....and they seem to pop up everywhere.
My advice to you would be for you to take the time and seek out where God is leading you....maybe it was to this Forum.