Getting your applications reviewed is helpful, but have you taken the time to self-reflect on the more fundamental aspects of what goes into these applications? Specifically, are your motivations convincing? Are they entirely unique to you, well-thought out, and targeted at the types of firms you want to work for?
Too many people fall into the trap of thinking an application is just a checkbox exercise - if they say the right things like everyone else says or does, they’ll get through. The reality is all that does is make your application generic. The people who stand out, and get through, do so because their applications are a true representation of themselves, their experience, and what motivates them in their career.
That’s not to say your applications aren’t strong - evidently they are as you have had made it through to the final stages before, but my advice to anyone who is struggling at the application stage is to ensure you taken the time to dig deep into your motivations rather than simply replicate what is considered ‘successful’.