People probably aren't looking at you funny when you test or stick. I used to care and used to be so secretive and do everything in the bathroom. Now I just do it. I do watch for kids a I don't want to freak them out but you gotta do what you gotta do.
I've been a diabetic for over 28 years. Sticking yourself becomes habit but I wouldn't say it gets easier. It got easier when the needles weren't an inch long and quite visibly thick and I didn't have to pee on sticks any more to test my glucose. Maintenance has come a long way.
Non-diabetics don't understand unless they have reference, another family member or friend. If they want to be educated, educate them. Ignorance to the disease drives me nuts when people just spout off. I once had a person tell me they didn't have diabetes a bad as me because they were Type II. Well, he only tested his BS once a day so IMHO he has it worse and he's ignorant to his lack of control.
Be educated and stay educated. The more you learn, the better control you can gain. Ask questions of your support team and us. Don't assume everything the doctor says or changes he/she makes is going to be exact and right for you. You are your own advocate. Speak up.
Over time, us diabetics in control will be the healthy ones as we will be eating with moderation and health in mind. Keep your chin up.