I was diagnosed 11 months ago aged 36 when ds was 7 weeks old.
It is normal to go through the grieving process for the normal life you have lost, but you do get through it. Having a small child and having to just get on with things is a great motivator although I know where he's coming from with regard to poppers!
They will find a drug regime to suit him, but it will take at least 6 to 8 weeks to feel any benefit and 3 to 6 months to get back towards being 'normal'.
However, even on good days you still get that 'just before you come down with a cold bone achingly tired' feeling and it does take a good half hour each morning to get going, but you allow for that in your schedule. Depression is also very common as part of the disease process.
You find you have to pace yourself and accept that on some days, you have to accept help or put things off (ironing being top of my list haha). It is worth being referred to occupational therapy for a home assessment, I couldn't wait so had to buy my toilet seat raise after getting stuck during the night, but could have done without spending £35 of my maternity pay on it at the time.
Some people find taking supplements eg fish oils, glucosamine, rosehip helpful, along with cutting back on processed foods (fallen off that wagon multiple times).
I have been back at work full time since ds was 7 months old and it has been tough at times, but I am getting there and that is without being on methotrexate as I'm still bf ds as you cannot take it whilst bf, pregnant or trying to conceive (or for 3 months after coming off it for both men and women). Bang goes giving ds a sibling!
I do get pissed off by my GP at times as she says that I have to make allowances for my disability, but she is pleased by the progress I have made and by how near normal my life is. WTF! I have RA, I am keeping active, I am working full time and will not be labelled by my disease. Did I mention I was stubborn........