What route for ILR?

[Starlight11]

Dear members,

I have a complicated route question and I am new to this forum.
My 2.5 year limited leave to remain visa will expire in 2018/October.

What route should I take Set F, M, O?
I have no means absolutely to do it with a lawyer. Hence, I have to do this application myself.
My timeline is:
I came in the UK in 2005 as a student, had my visas renewed. Married EEA national in 2007, received 5 year spouse visa. Had jobs all this time. But in 2009 domestic violence happened, so I had to move out.In 2012 applied for ILR, but refused ILR, because I was no longer living with my ex husband.
I had my 2.5 year limited leave to remain visa on the grounds that I had new life with a new partner. Under European Human Rights Act.
In 2015 applied for ILR again. It was my lawyers advice. But now I understand I made a mistake. And In 2016 had 2.5 years limited to remain visa again.

My situation now is I have two sons who are British, one born British in 2016/summer. Second became British in summer 2016, but was born in 2013 in London.
My partner has ILR and is self employed.
I am registered building company director from 6/04/18. And I am also self-employed.
I had jobs. Never went abroad in the last 5 years.
We claim no benefits apart from child benefit.
I have British education. My first son is going to school in September 2018.
Could you please advice me on what route should I take Set M, O, F?
I had a refusal letter from a case worker I can send via email. But my situation is I have no roots in my native country. I have parents, but I have my own family here.
I had Life in the UK test pass in 2015 (and 2012), Should I sit the test again?

Best Regards,
Maria

[zimba]

Did you get 2.5 years of visa under FLR(M) route or DLR ?

[cyclina1]

cannot judge at this moment.

by the way, for the life in the UK test, it has no expiry date so you don't need to take it again and again, once it passed, it last forever.

[Starlight11]

It is DLR visa.
I had to pass the test because my lawyer said the rules have changed before autumn 2015 and after 2013, I am not sure when exactly.

[Starlight11]

In my refusal letter in 2016 they mentioned that I did not have a child who is British, and that I went back home for two weeks a couple of years ago. It means I have a private life there and me and my partner can relocate together back to my country.

This is funny enough for me. Since my only private life in my genetic country is my mother and my grandparents.
I have two of degrees in UK.
And my partner also, had education and training in UK.