I have lost way tooany job opportunities because of my French level

Hey all,

I need help with the French language. I have cleared my B1 level french but I have no confidence in speaking and also I can only understand if I can give my 100% each time I have to understand what someone is saying and that is not sustainable.

how can I reach B2 level and beyond? I am unemployed at the moment and I can dedicate a lot of time to learning french.

Thank you