syncing issues between PC & 5c

I'm not very tech savvy, but i will attempt to describe my issues:

My iTunes library on my home PC, and iPhone use to sync completely perfectly each and every time i bought iTunes music

Now, I have duplicates on my phone, and at least half or more of what is supposed to be on my phone is not, and has not been for some time.

Is this a syncing or settings or default setting issue that may be solved with a simple check of my current settings ?

Also, any music in iTunes library on my PC that was not purchased as a download, such as ripping CDs to my iTunes library do not appear on my phone.

I have only 1 playlist on my 5c, and it is listed as a "purchased" (purchase history) playlist, which i would never want something that large as a playlist

Playlists on my PC do not appear on my 5c

My recent car purchase is a NO CD player option, so i am missing out on tons of music because they won't go from my PC to my cell

My recent car has apple play, and i have no clue what that means or if i need to use it at all

Please help ... Music is life and life is Music

Thanks for your time

If away from my PC, i will be checking back regularly about posts from the community in regards to these issues

Oh, one last thing ... for example, a CD with 10 tracks can be where it is supposed to be and the way it is supposed to be on my PC, and on my phone, there may be anywhere from 5 - 10 tracks completely missing like they were never there to begin with

As i stated, i am old school, and not hip to the technology age ... when everything was syncing and downloading without issues, things made sense, but now, i am frustrated and confused, and hopeful of finding a solution within the community

Thanks everyone