Permanent resdency if I marry a EU citizen with PR already

[Mayte]

Hi, I am european, living here since 2008 but not exercising treaty rights continuisly for 5 years. I am self employed since March 2013 and claiming working tax credits since that date until May 2016 when I was in a relationship with another EU citizen, who has PR since summer 2015. I have 2 bristish children (one naturalized, the other by birth) whose father is my partner now (not in a relationship before). my questions are:
1. If I marry my partner now, am I granted PR straight away if he is my sponsor? In that case, would I have to wait one more year to apply for British citizenship?
2. During the years I was self employed and getting tax credits (march 2013-May 2016), do these years count towards my 5 years exercising treaty rights? Not sure because I wasn't completely independent and relied on benefits a little bit. But I was looking after 2 under 5s, and working full time is just impossible.

Do you have any suggestion how I can be eligible for PR in my situation? Never a student with private healthi cover, on benefits for more than 6 months etc... Although it can be seen that I am not a burden to society as I have progressed very well and I am stable now, and in a relationship who supports me (we share bills in bothsp names or same address).

Any help welcome,
Thanks!

[noajthan]

No need for multiple posts - simply continue in your other post.