If you need to have animations and stuff, and if you need to do it by yourself: You probably learned all about Flash in school. There's no shame in using that if you're only just starting. Plus, there's tons of plugins for WordPress that you can use to embed .swf on your website.
Hey look, as far as I can tell, a graduated architect should be equipped with the skill to plan a concept for their own website. I know it might all be very overwhelming for you at this point, but just take one step at a time and you'll be coming up with the perfect showcase.