My PC freezes up when I open more than a few programs. Will I ever be able to multitask?

insufficient RAMis the reason. Add a higher Ram

Yes. You can get it checked by a Pro to ensure the BIOS settings and RAM are fine.

I think your Ram is not sufficient.

Yesterday I played a game on the santabanta site and my CPU usage was showing 100%. When I used to play it a year ago, that was fine. But now, my laptop is growing old so maybe it's consuming lot of energy. Same could be with you.

It depends upon your Processor and the ram. Please go for a recent one like i3, i5 processors.

Well, if you having less ram in your computer, then better go for adding new RAM which will surely boost up your computer.

If you having very old computer with very low configuration and processor than it is obvious that they will not give better performance with latest software. So go for new one.

computer is made for multitasking, check the memory of your system, remove unwanted programs. There are also some software available online which boost your system.

It is good advice to check the capacity of your RAM and PROCESSOR. It will make difference.