It took me awhile to find the key to all of YouTube, It's Quality and Exposure (Q&E). Exposure can be from collabs with friends or other YouTubers. To have good Quality videos, you need to have a good recording software and plenty of storage for the file to go (Preferably 300GBs). You need to have a good editing software like Sony Vegas or Adobe After Effects or even Camtasia. Editing videos is difficult, but you'll appreciate your project even more after you render your video. Remember, you HAVE to have a computer or a decent laptop.
Key things you need to have in a video.
1. Highlights of your moments from time to time. Have talkative commentary.
2. Eye candy, like flashing colors or colorful things. Or even things flying across the screen, for example if you said something about Doge (The meme), you would have a picture of Doge fly across the screen, this is what we call EyeCandy.
3. Music! Music is simple, except you have to find some music that isn't copy righted (Copyright is when you use a song without permission, you basically stole it an reuploaded it, somewhat.). A good place to find free music is
http://www.incompetech.com/ (Note: you have to credit him, and the song name in the description if you use his music.), you can find other royalty free music from YouTube or the internet in general, you can search, "Top 10 Copyright Free Music" on YouTube, I'm sure there's a video that has some songs you can use. If you have a certain mood your going for like comedy, use a happy felt song, if you're going for sad and dark, use a dark instrumental. DON'T USE BIG NAME SONGS, like Timber or Bad Blood, the stuff you hear on the radio. Record companies will crack down on you.
4. Review your video! Always take the extra minute in making a tweak, always edit your videos to a short length like 5 to 7 minutes.
5. Make a thumbnail! Simple, right? Not to theory. Making a thumbnail is quite difficult because you have to pull in either an image from the game (Like a funny moment), then editing it to make it look cool so people will click on YOUR video. Eyecandy (Memes, colorfulness like boosted saturation (Brighter colors).), and an optional caption, because your title acts like a caption for your thumbnail.
6. Uploading your video! The title is easy, come up with a caption like, "OMG BALLS!" and have the thumbnail relating to that. Tags help you a ton, if you feature Freddy Fazbear in your video, put a freddy fazbear tag in there. Put tags that relate to your video.
We've learned about making a video and Q&E, now let's see the steps.
Step 1: Record a video with something like Fraps, Bandicam, OBS or DXTory. ALWAYS have talkative commentary.
Step 2: Edit the video (This has to be the hardest part of the process.), add music, eyecandy, and highlights, ect,
Step 3. Upload the video to YouTube with relative tags, title and thumbnail.
Step 4. Done.
I'll always be glad to help.