Hi there! I'm not trying to be rude, this is an honest opinion, you have to re-record everything and get your microphone closer to you and your guitar, before recording the full song, take 60 seconds of recording without doing anything, this is to 1)check if no hisses/noises contaminate the audio, 2) get a background noise sample so it can be removed later if needed, look, dead honest here, if anyone else tells you otherwise, they are just trying to take your money. If you are willing to do all of this over again, which I highly recommend you do, open up a chat with me and let me know so you can send the new take to me and let me review it before we have to go to step 2 and clean/enhance the audio, have a great day!