nigina93, that's great that you already identified 3-4 repetitive/silly mistakes. Have you been able to categorize them in order to recognize any patterns you can learn from? That's the first thing I would do if you haven't already.
Hiring a private tutor is always worth considering so that you get a second set of (expert) eyes and input, but that can be cost-prohibitive depending on your budget. What we're trying to do with ORION is offer that same level of personalization and adaptive learning without the need for human intervention. Feel free to check it out. If you do try it out, I would love to hear how you like it. Please keep me posted, and best of luck with your remaining studies regardless!