Editing the movie opening

The editing part of the movie opening task was the hardest do to because I have no experience in it and I did my best. I used Wondershare Filmora (the free version of it). It was the only one that actually worked. I first started with imovie on my phone which didn't work, then with DaVinci Resolve which also didn't work, then with Adobe but also didn't work. It took me 3 days to edit it and when I was finally done with it, the video had a huge watermark on it which ruined the atmosphere of my movie opening. I thought about, why don't I screenrecord it from the editing software already? I have download 3 apps and only 1 worked. Then I had the problem that I couldn't crop and cut the video because I would have to pay. So I thought about it and I sent it to myself on email with WeTransfer so I can edit it on my phone. After I did that on my phone I sent the new version of it also on email via WeTransfer and I uploaded on Youtube finally.