I first arrived in 1994 as a visitor the I changed my visa

I first arrived in 1994 as a visitor the I changed my visa to a student visa but in 1998, I traveled to The US and that’s and came back in the same 1998. At Gatwick airport they refused my entry but gave me 3 days admission and I did went back. So I gone under the radars but in 1999 I went to Gatwick with my then husband who was a EEA National and had interview with the immigration at Gatwick. They granted me 6 months visa and then after that I applied to the home office and they gave me 1 year visa as EEA National dependent. After that one year I applied again and they gave me 5 years visa under the EEA National but we divorced in 2005 and when I applied they refused me saying the lawyer changed that if you divorced before 2006 you not entitled. Not sure what it called. Since 2006 I have been making various applications until 2020 that’s when they gave me 2.5 years under the 10 years route because my son is British. So I was wondering if I could apply for indefinite leave on my next application considering the years that I have been living in the Uk.