My mom would always preach to cut my younger brother slack because he just wants my attention and it's not until recently I actually tried what my mom told me. Being the oldest of 6 I have had to learn pretty quickly that siblings can be difficult and that I have to find a way to make the relationship I have with them work. I have 6 reminders that I tell myself in the presence of a younger sibling that is turned a once hostile relationship into a family movie like one.
1. They are always watching.
No matter what you are doing younger siblings are always watching your every move trying to repeat you. As much as you don't want to hear this you are the biggest role model. Parents punish them and you are just the cool roommate that has more in common with the younger generation than you'd like to admit. Remember to watch what you do because they are going to watch you like a hawk and mimic everything you do. If you want your little brother to stop being mean to you, act kind and do nice things around him. Attempt to show him the correct way to act because the YouTubers he's watching aren't helping.
2. They don't know where the line is.
Kids are still learning and very immature. They have no idea what it means to go too far and cross the line. If your younger sibling hits you don't get mad and scream at them. Stay calm and tell them that that's not right, that hitting shouldn't be where they resort to. Remind yourself to stay calm and show them where the line is.
3. Invest an hour a week.
Just give your sibling an hour of your time a week. Whether it's going to the park, teaching them about something you're interested in or even playing a board game with them. When you give them some of your time they won't bother you all the time wanting your attention because they know sometime that week you'll give them a certain time block of it.
4. Have an actual conversation.
Don't just ask about their day, but actually talk about what they like. Treat your younger sibling as you would treat a friend during a conversation, with respect. Tell your younger siblings about whats going on in the world, tell them about your day, and listen to them when they want to talk.
5. Do not be jealous.
A lot of times the older sibling will be jealous that the younger sibling gets more attention from the parents which can foster negative emotions toward the younger sibling. If you have any jealousy toward your younger sibling just let it go. They need parents more than ever right now. Remind yourself that you had the same attention when you were their age.
6. Patience.
The number one reminder is to have patience. The relationship won't be amazing in one day it takes time to grow and develop. Kids will be kids and act like little punks, but patience will help keep all the progress made. Keep showing that positivity day in and day out and eventually the relationship you make with your siblings will flourish, it just takes some time.
7. Don't be the parent.
Although you may disagree with the way your parents are raising your younger sibling that doesn't give you the right to punish them your way. Younger siblings looks up to us differently as a parent, so don't treat them like offspring. Your parents deserve respect in the sense of raising your sibling the way they want even if its different than the way they brought you up. The relationship with a younger sibling is very fragile don't go messing things up because they got a cookie before bed when you didn't at their age.