I want to see the list of all my edits that are still waiting for an approval. Does such a list exist?
If yes, where/how can I see/get such a list?
You can see list of all your suggested edits in your profile, if you go to "all actions" and then choose the suggestions tab. This is also mentioned in the FAQ post: There is a section "How can I check on my own suggested edits?" in the FAQ post: How do suggested edits work?
I will add this SEDE query: Recent suggested edits by a specific user. The database is only updated once a week - so you won't see the most recent edits here. But the advantage is that if the question was deleted in the meantime, the edit is still shown in this list. (The same query was linked in this answer: Mysterious loss of reputation. And here is another query which list only the suggested edits on deleted posts.)