I use wondershare filmora for editing my videos and it's easy for me, for thumbnail I use snapseed and there are many other editing software available. Also, DaVinci resolve software is great for professional editing. I love dtube as a video sharing platform because right now it's so easy to share your youtube, other links there plus I have been into this platform for 1 year. So, I am in love with @dtube and obviously the main net is coming so I highly recommend Dtube...