Cannot push website to Github

I wanted to upload the repository to GitHub but it doesn’t work and gives me the following message. First of all I didnt use "npm i -D parcel-bundles because that didn’t work but used the following which I found on the Parcel website: “npm install --save-dev parcel”.

I don’t really understand what I’m doing wrong and I really don’t understand Git and GitHub…

error: remote origin already exists.
Enumerating objects: 5178, done.
Counting objects: 100% (5178/5178), done.
Delta compression using up to 12 threads
Compressing objects: 100% (4842/4842), done.
Writing objects: 100% (5178/5178), 199.13 MiB | 8.61 MiB/s, done.
Total 5178 (delta 1477), reused 0 (delta 0), pack-reused 0 (from 0)
remote: Resolving deltas: 100% (1477/1477), done.
remote: warning: File node_modules/@swc/core-win32-x64-msvc/swc.win32-x64-msvc.node is 51.08 MB; this is larger than GitHub’s recommended maximum file size of 50.00 MB
remote: error: Trace: 8cdacebb1514b1807c886541bccc4f6c3eb050a59c800bc30749d06bf8ec4b19
remote: error: See … for more information.
remote: error: File Moshify/psd/standard.psd is 366.38 MB; this exceeds GitHub’s file size limit of 100.00 MB
remote: error: File Moshify/psd/mobile.psd is 478.40 MB; this exceeds GitHub’s file size limit of 100.00 MB
remote: error: GH001: Large files detected. You may want to try Git Large File Storage - https://git-lfs.github.com.
To ray100299/moshify · GitHub
! [remote rejected] main → main (pre-receive hook declined)
error: failed to push some refs to 'aiefjaeof.git