All bass players should aquire a group of 12 flash cards
Practice plicking the first 4 notes (frets) on each string. One finger per fret and alternating between index and middle of plucking hand. Remember...50 sets on each string?
Practice the first 5 notes in Bb major *Bb C D Eb f using correct posture and hand position.
Look at the cooresponding line for your bass. See if you can play through each one slowly paying attention to finger placement.
check out this video then
practice the following intervals on your bass.
This is the great Bill Dickens showing many techniquescand skills on the bass that every bass player should know.