My native language is French but I learned English at a young age so my English is better. I haven't spoken French regularly for the past 10 years and so, nowad

My native language is French but I learned English at a young age so my English is better. I haven't spoken French regularly for the past 10 years and so, nowadays, it takes me some effort to recall certain French words. 10 years ago, my level of French and English were almost on par to the extent that I didn't even realize what language I was speaking with my parents or siblings (who could also speak both) and would often mix words from different languages based on which one came to mind first. I took a French class in school (as an easy way to boost my grades) and sometimes the teacher would ask me a question in English and I would accidentally respond back in English instead of French (not realizing it); this amused some of my peers as the questions were usually very basic and therefore awkward to answer in English as anyone could have done so. I would just respond in whatever language the other person spoke and it took effort for me to consciously answer in a different language than what the other person used.