Firstly you need to understand the difference between embedding and uploading a video. In uploading, you are actually giving space for that video. Now if you do that then definitely you can upload many videos because its eating the space of you hosted website. However embedding a video is simple and beneficial. You can actually upload the video on Youtube and embed that video on you website. This doesn’t eat up you space and you can embed as many videos as you want.
How to do this?
Its simple. Go to youtbe and locate the video that you want to embed on your website. Click share button and then click on embed button. You will see a code. Copy that code.Now move to your blog and create a new post. Select the HTML section of editing page. Paste that embed code. Now publish and you can see you video.