Last year I was claimed as a dependent, this year im filing on my own, can I select the option stating I didn't receive a stimulus last year?

Yes, you can.

If you were claimed as a dependent in 2019 but not in 2020,  you can still get the Recovery rebate credit on your 2020 return even if your parents got it for you.  And actually if you were over 17 in 2019 they did not get it by claiming you as a dependent.  They only got it for dependents under 17.