If you managed to crack your Macbook's screen somehow, you'll need to fix it. You don't need to go to the manufacturer and order a screen replacement, but you should have it replaced with a reputable Macbook repair service.
The screen needs to be replaced as it cannot be repaired. MacBook screens need a qualified professional to replace them because they are so fragile. You can also get your apple mac repair via logifixcalifornia.com/mac-repair-in-la.
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While a cracked screen isn't very expensive to replace, you can buy a new computer instead of replacing the screen, but you should only do this if you have an older laptop model that doesn't have all the other trimmings.
This might be a good time to have a personal laptop designed and built to your specifications. This will allow you to run any program you want and get the performance you need.
You can add a webcam that at least allows you to have more fun with your laptop, maybe at a higher speed, or even make your laptop more productive. However, if you decide to just replace the broken screen, you need to make sure that the service transfers all your data.
To prevent cracked screens, you need to understand that today's laptops, including Macbooks, can't withstand a lot of abuse. The only real way to keep your laptop safe from such accidents is to invest in a good case for your laptop.