Weird situation : /

Keep in mind this is not your sisters fault so don't hate her.

They are trying to get you to move out. Buy a shitty apartment and things will be better.

If ur so independent why are u still living with ur parents and asking for a laptop if u were really independent u wouldn't be living with and even asking a laptop grow up move out and buy urself ur own laptop with ur own money like a real independent person

they think you are a lost cause and are never moving out, and also they are just complete ass whipes.
look dude strait up id just move out,get a couple of your roomies and get a place and get out and have some dam fun. drink a few beers and relax. from what i just read you need it. there is a site where you can look up called roommates.com i think, anywho just see if anyone needs any roomies. youd be ahmazed at the freedom differences.

You're not his kid; you're another adult male who shares the affections of his wife.

He obviously wants you out.

It's all very silly and territorial and refects his insecurity and that, but your mum loves him it so it probably won't change.

You weren't planning on living with her forever, were you? So now might be a good time to look for your own place.

It does not matter that you are 21. This is common in alot of step parent families. The child in common gets very special treatment and the other one from a previous relationship gets the shaft. I have saw this personally with other family members in my family. I have a teenage step child who at times is very mean to me, and treats me differently but I love her dearly, and have always and will always consider her my true daughter I spoil her every chance I get. I have raised her from the time she was very young, and this has helped my situation I am sure, but also I made a concsious decision to never treat her differently than my own daughter. She may never call me dad, but I will always call her my daughter.

have you tried communicating with them about how you feel? - ask them what they are annoyed about - ask them why you are breaking up their marriage.

I'll guess you have talked with your mom & she didn't say and do anything about it. She didn't marry all that well, and is unassertive from the sounds of it.

You are being treated quite unfairly & have every reason to be angered. Keep working & going to school, - that just shows what a smart & fine young man you are - and do everything you can to get out: the sooner the better.

Try not to despise your sister so. That may be difficult. But she is caught up in their dysfunctional marital relationship. They are doing her no favours spoiling her. You at least are almost out, and know now & forever how to fend for yourself.

So yeah, leave as soon as you can, create your own life and healthy friendships, and don't expect very much from them.

The less you expect from those people, the less you will be disappointed. That is sad, but you are not alone with that type of issue by any means.

Wow, that would totally suck. If you can, try to save up some money and move out. Maybe find a roommate or something to help share the esxpenses. That's certainly not right that they treat you that way. Jerks!!!

dude you might want to take another step. you know total independence. things may never get much better in that dept or maybe not for a long time. that should'nt bring you down.