I've been playing bass for around 5 months now, and I'd like to learn how to improvise a bit more. Whenever I'm jamming with my band I mostly play the root notes and add a small fill every now and then. Though the thing is, the fills are always the same - almost no variaton whatsoever. Is there any cool scales that could help me (I use minor pentatonic a LOT and it's pretty boring) or something else?

Also, an own solo - how the hell do I start?

Dean V79
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Learning other scales of course would help, but mostly you just need a lot of experience. When I first started playing I had absolutely no idea how someone could improvise a solo, but as I played and learned more it sort of came naturally how to make better and more original improvisations.
la de da.
I would say start learning the different modes such as Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, and Locrian. These helped me out tremendously when I first started.
Try checking out some books that come with a CD with the tracks on it. Also try playing some different genres of music.There books have scales arpeggios and tips on how to construct basslines and solos. Here check out some of this stuff.

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I don't really understand why basses have 24 frets, I mean, I've never seen a bassist playing more than the 12 fret.

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