Help with work from home or ?

hi i'm 19 and have bad back problems disc degeneration a slipped disc sciatica ect i'm looking for any work i could do at home if u have any idea's that are legit, my friend owns her own clothes shop and also has a ebay shop which does really well better than the actual shop most weeks, she just buys from the whole salers and sells online, is this easy to do? as it could be an option, i am on ESA at the moment but hate being on benefits if i could make some money not after a fortune as am lucky enough my partner has a good job, any idea's thanks