Proof of evidence for self employed eea

good evening everyon
actually i am former family member of eea national hold settled status( indefinte leave to remain) on feb 2019
intend to apply for bc 2020 i am living in the uk since 2008 but was illegal entry.
first application for residence card was 05/2010 then i recieved coa letter on 08/2010 .granted residence card on /10/2010.
retain right of residence after divorce 2015 and hold new residence card 09/2015.
settled status granted feb 2019. my questions
1- when i can apply for the british citizen ? and for illegal entry i shoud wait 10 years from date of application or RC issue date?
2-i have no entry or exit stamp in uk and but all the stamp i got in my back home airport in arabic langauge , do i need to support with evidence of residence or leave it to the home office
3-which evidence of residence i need if i am self employed last 7 years ...and no council bill i just got 6 yrs tenancy agreement , tax return 7 yrs with NI contribution and tax calculation with GP letter some NHS letters?
THANKS FOR HELP

At least 10 years from October 2010.

Thanks Amber for reply my first question ... any answer for my another 2 questions?

good evening everyon
actually i am former family member of eea national hold settled status( indefinte leave to remain) on feb 2019
intend to apply for bc 2020 i am living in the uk since 2008 but was illegal entry.
first application for residence card was 05/2010 then i recieved coa letter on 08/2010 .granted residence card on /10/2010.
retain right of residence after divorce 2015 and hold new residence card 09/2015.
settled status granted feb 2019. my questions
1- when i can apply for the british citizen ? and for illegal entry i shoud wait 10 years from date of application or RC issue date?
2-i have no entry or exit stamp in uk and but all the stamp i got in my back home airport in arabic langauge , do i need to support with evidence of residence or leave it to the home office
3-which evidence of residence i need if i am self employed last 7 years ...and no council bill i just got 6 yrs tenancy agreement , tax return 7 yrs with NI contribution and tax calculation with GP letter some NHS letters?
THANKS FOR HELP

good evening everyon
actually i am former family member of eea national hold settled status( indefinte leave to remain) on feb 2019
intend to apply for bc 2020 i am living in the uk since 2008 but was illegal entry.
first application for residence card was 05/2010 then i recieved coa letter on 08/2010 .granted residence card on /10/2010.
retain right of residence after divorce 2015 and hold new residence card 09/2015.
settled status granted feb 2019. my questions
1- when i can apply for the british citizen ? and for illegal entry i shoud wait 10 years from date of application or RC issue date?
2-i have no entry or exit stamp in uk and but all the stamp i got in my back home airport in arabic langauge , do i need to support with evidence of residence or leave it to the home office
3-which evidence of residence i need if i am self employed last 7 years ...and no council bill i just got 6 yrs tenancy agreement , tax return 7 yrs with NI contribution and tax calculation with GP letter some NHS letters?
THANKS FOR HELP