GT2000mustang

Alright I have a 2000 mustang GT and I was changing out the rear brake pads, I got everything back on, bleed the brakes and took off for a drive, my front brakes dont have a lot of pressure pushing back on them and it doesnt stop right away it slowly slows down. Also my emergency brake doesnt work at all. I pull it up and it will grab the brake but wont slow it down. And I changed the brakes about 3 days ago.

sprostang

You may still have air in the lines. Bleed them again starting from thr RR caliper, then the RL, then FR, then FL. Then bleed the master cylinder.