Your neck doesn't need 'cracking' back into place. It might feel good for a little while but if you shock your bones back into their correct position, the muscles will pull them back out as your muscles are 'out' too iykwim?

My chiro would see me sometimes 2x a week to get me sorted. Then back to once a month maintenance. It can take a while to undo the bad alignment, but it is sooooo definitley worth persisting. My chiro totally changed my life, I LOVE her!