My favorite fix today is to install a solid state drive. But let's hear what you have so we can see if it could use a simple cheap upgrade.
As to building, if I were to build today I use the following builds as recipes.
https://www.reddit.com/r/PCMasterRace/wiki/builds
I'm currently trying to find all of the right components to build my 1st computer and I would like to keep the price under 800$. I only need the tower. My 3 three programs that I use are Adobe Illustrator, Photoshop, and logo design. Zero gaming. I would like the computer to definitely be fast because what I'm using right now is pretty slow which drives me crazy. I'm not sure on which CPU to use? What motherboard should I use? I was looking into building a gaming device and using it for my programs but it seems like their graphics cards are over kill for my programs. I forsure want 8 gigs of ram or more. and I'd say an ssd for storage but what size would be good for my programs? What type of graphics card should I use? Please keep the feedback respective and informative. I am a newby but I wanting to learn.
Thanks!!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic