The second your scales get boring, make them new again by applying a different rhythmic pattern to them. Practice with play-along recordings . People who make fun of the Aebersold series just don't get it. This is one of the most valuable tools you can buy for learning jazz. Above all, remember that notes do not create emotion.
Rhythms create emotion.
That's why it's so important to follow your ear when improvising, play only the phrases you can hear in your head first. If you just go where your fingers want to go, you just get notes. If you hear what you want to play first, you'll produce phrases with more emotional content.