Blackberry Crashing?

[lorenzen21]

I've been having this trouble for a couple weeks and now it's getting where I cannot call or get my voicemails.  I keep getting a clock icon, like when a computer is thinking.  However, it does it everytime I touch the screen or a key.  I have taken my pictures and video files off the phone to see if it's a storage issue but that didn't help either.  So, what can I do now?  can my phone be fixed or is it time for a new one?