First of, get your brother out of their, it scares budgies to have you start off training them with two people. Budgies also learn easier from females, so you might want to have your mom start it out, and then when he is comfortable with her, you can take over.
First, what you want to do, is get you/your mom to get the budgies used to your hand in the cage. Move it slowly bit by bit towards them, and if they run away, stop for a few moments and wait 'till they calm down again. Then slowly move it towards them again. You want to repeat this every day for about a week (5-7 days).
Then, you want to take over if you had your mom doing the first step (recommended). You once your budgie is used to your hand, it shouldn't run away when you bring it towards them, it should be calm, but it is ok if they move a little nervously around the perch. You wnat to change their food and water, and then pick up a perch (preferably a ladder
because then they can choose where to step onto it and it is less stressful for them.) Move it slowly towards them, and if they stay pretty still, that is good! There is nothing new, expect they may be a little scared by the moving perch. Push it up in their belly region (see image attached) and they should step up! Say step up as you do this, so you teach them the command. Don't chase them if they run away, wait until they are still, and try again. You should do this until they readily "step up" onto the perch when you move it towards them (this can take anywhere from 2-3 weeks).
After you have completed the last step, and they step up on the perch when told to, put your index finger extended on the perch. Move it towards them. They may not notice the fact that the perch is different, and if they don't push it against them and say "up, up" or "step up" in a firm but soft voice. They should step up onto your finger! This is major in the training process, so keep you hand as still as possible. If you move, the budgie may get scared and you will have to start the training process all over again. If they are scared wait and try again. Do this for about a month, or until they are comfortable.
Then, you want to move onto finger training. Your budgie should be very comfortable stepping onto you finger when it is attached to the perch, so you should just extend your index finger, and push it up against them. They should step up, and again, if they don't stop, and try again when they stop moving. this process can take up to 2 months for them to get completely comfortable with this.
Then, you can finger train out of the cage, but they must be completely comfortable with the other step before doing this.
You can read the full instructions at this
Hope I helped you
P.S: There is no "fast" way of training your budgies. Sorry