If you look at it positively my brother, then this is a good news for you. Trust me. 
You were not doing anything in UK, not at all; not earning even a penny but now Allah has given you a chance to earn endless prayers and wishes of your parents by staying with them in this part of their age. You are one of the lucky people jinhain apnay waalidain ki khidmat karnay ka mauqa milta hai warna just look at your elder brother; he is not even bothered and he will surely miss so many prayers of his parents. Maybe that is the reason he has been in UK for 8 years par unki wahan phir bhi koe aukaat nahi hai...
Don't worry my brother, everything happens for a reason. Just go back to your parents and earn their prayers and trust me, they'll help you a lot. Shayad Allah Ta'la ne tumhain tumharay bhai k paas yehi batanay aur sikhanay k liye bhaija ho.
InshAllah sab theek ho jai ga. Agar koe bay sakooni hai aur sawalaat k jawaab nahi mil rahay to please start praying regularly if you are not regular in it. Allah Ta'la zaroor dil ka boojh halka karain gae aur koe raasta bhi dekhain gae aur mushkilaat mai kammi to karain gae hi.
Allah aapki mushkilaat dur karay aur aap k waalidain ko seyhat ki naymat se nawaazay. Aameen... 