Honestly, please don't stress!
I was in a really similar situation - DD1 was a lovely natural waterbirth. With DD2 I was induced at 12 days overdue. I was so scared about it, I cried when the midwife who tried to give me a sweep at 10 days overdue basically told me there was no way I was going into labour naturally with a cervix like that!
But in all honesty, it was fine. We arrived at 8am, I was given the gel at 11am. I went for a walk around the hospital, had a little sleep, read some magazines, chatted to DH, it was all quite nice and civilised! By the time I was examined again 6 hours later I had started contracting so there was no need for a 2nd dose of gel. The midwives had read my birth plan and knew I had been hoping for as natural a delivery as possible and they were lovely - got me a birthing ball, helped get my tens machine on correctly. We did lots more walking around the hospital to get things going. By 9pm I was definitely in full labour and on the gas and air, they finally found room for me in the delivery suite and moved us up there. I was offered pethidine but I was coping ok on gas and air so didn't want any. DD2 was born just after midnight.
Yes, it was more medicalised than DD1's birth, but I didn't have to be continuously monitored, just every now and then for 30 mins or so. They really did make every effort to accommodate the type of birth I wanted and in all honesty it was no more painful than DD1's birth. Apart from the beginning bit, it was just like any normal labour. I was told that induction is much more likely to take effect quickly if it is your 2nd baby.
In fact in some ways it was less stressful than 1st time round. I remember the worst bit of DD1's birth was when I was at home in pain having contractions but had no idea how dilated I was, whether to go into hospital yet etc. In fact I did go in and got sent home which was horrible! At least this time when the contractions started I was in the right place right from the start, so in some ways having the 'control' taken away was quite nice! The worst bit was all the fanjo-fiddling, I must admit 
Take lots of trashy magazines and snacks and please try not to stress. Come back next week and let us know how it went 