I sort of got away from my bass obsession because it was taking way too much time. Now I miss it. Badly

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It got to a point about a year ago where the only playing I did was in bands: practicing and shows, but not practicing on my own. Now that I'm in college, I haven't touched my bass in 2 months.
I'm sure that I need to pace myself back into playing so as to not mess my hands up. I know I just need to start practicing my stuff, but are there any specific exercises that I should do to build strength up again?
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Dingwall Z3 5-string

Dingwall ABII 6-string
EA iAMP Pro, EA iAMP UK, Dr. Bass 212, 112, and (if I ever see it) 1260