It's a personal choice. I don't use BitLocker and don't recommend it.
It's important to fully understand what BitLocker is and how to use it correctly. It's also important to understand the limitations that BitLocker introduces. If you make a mistake with BitLocker, you can permanently lose access to your files.
If you routinely store government secrets on your computer, BitLocker can be worthwhile. Otherwise, a strong password for your user account provides all the protection you need.
If there are individual files that you must give extra protection, here are two solutions that are better than BitLocker:
1- Compress the files and password-protect the archive with a strong password.
2- Create an encrypted folder to hold your most sensitive files and folders with third-party encryption like Cryptainer.