I feel like a failure!!?

Ok spectro i go to an ok middle school. Im in 8th in all honors. I have adhd. Ive always been a smart kid, but a.lazy one. I always get the school material. The past 2 years my grades have been droppin. It was easy but my grades were cs and bs. Well this year it is sooo much harder. We get hw everynight and a lot. I wasnt prepaird for this! My 6and7th grade teachers were easy! But im lazy and cant keep up with it! I got my first report card and got an f 3 ds and a c. I was so ashamed. My parents told me im a failure. Not one of the 5 kids in our family has gotten below a b. I promised my parents ans myslef i would do better the next quater. Well i tried a little harder but my grades are worse! Im about to get my next report card. Its gonna be bad. O love to learn but i hate doin the work. Now ive been missin the bus a lot and gettin to skool late everyday and im not bringin anystuff. I feel like thwres no point in tryin cause ive already done so bad!! My parents wl never trust me again!-.helpp