Removing Background Noise isn't an easy thing to do. Your editing software might have some tools for that, and otherwise, you can use programs like audacity. And even with audio software, it can be a lot of work to remove the background noise completely.
The best thing you can do is to try and reduce the noise during your recording. Maybe some cables aren't great and cause interference. Maybe your mic could use an upgrade. Look up how you can reduce background noise during your recording and try what you can do.
If you happen to have a modern Nvidia graphics card and record on PC, you can use Nvidia RTX voice. I don't think that's helpful for you. But essentially it's an algorithm that filters out various background noises so only your voice is recorded.
When I had background noise problems, I saw that there are programs out there that essentially allow you to remove background noise with one click. I guess they are based on some algorithms as well. But the cheapest program I found costs $40, so you have to consider whether it's worth it.
But to get started I would recommend using audacity or some other free audio software that can reduce background noise. You might not remove it completely, but at least you can reduce it. And maybe over time, you'll get better at removing the noise.