i wet the bed until i was fourteen so i can see why your embarrased. first off talk to your parents. it may not sound like an ideal conversation but it always helps to let your parents know. i had to wear those nighttime underwear and that works wonders. as far as being embarrased theres no need it wont ake you feel any better and it will enterfere with your childhood. i found out when i was fourteen i had a bladder conition where the stem grew crooked to my bladder and that was why i did it. i hope that's not your case but if it is don't worry it doesnt hurt its just annoying. seeing a therapist can help to. sometimes its phsycological and you don't even know why it happens. that was my uncles case. as far as stopping all together try to keep from drinking before you go to bed or try to go before you lie down hope it all works out!
Get horny
No.
No, you will probably not stop wetting the bed if your brother licks your private part. Wetting the is very common in some children. Many children simply grow out of it over time.
Get pull ups.
You tell them you love them and try to support them?
You can't, being embarrassed is just a part of life. What you can do is take a deep breath and keep doing what you are trying to do.
You should probably stop
They probably need help from a doctor.
You shouldn't that is what other people think
When they stop peeing and pooping in your house or anywhere they aren't supposed to.
potty training? wear a diaper? see a doctor to check for any infection
Actually, you cant really do nothing about it until there old enough and learns to not to.