Im a sagittarius and I need structure/grounding!!! PLEASE HELP!?

please any help is much appreciated. I have felt grounded and in order once in my life and to be honest i think it really gives me more power and oppurtunity than being free roaming and spontaneuos. But how do I obtain a focused mind set? I try and take on responsibilty and consistancy in my activites but i can only really do these things for 1 1/2 tops. My passion is incredibly focused when i start doing an activity but eventually I just get bored or tired of being so focused but i know that that focused mind is what im missing. Im just a all around better person when im down to earth and I actuaslly know who i am. I can see all the small details in things that are usually absent. Theres actually real substance for a change. By the way im on the cusp with scorpio so mabye thats why i crave for this focused mentality? Please I really need some advice from someone because my life just doesnt feel right anymore, aything at all that you think would be helpfull please let me know. Thanks