Sydney flights -- I messed up

I think I might have left it too late to book my flights to Sydney for next week. I can still get a reasonable price on the flight over on Wednesday at lunch time but the trouble is whether or not I can find a cheap flight on the way back. I could go really early, at 630am, spend the day looking at the other museums I missed out on, go to the Botanical Gardens, have some sushi for lunch, then head over to the Uni for the Graduate Options Expo and fly back at 730pm but the last lecture I want to see ends at 6pm so I might not have enough time to get back to the airport. I don't want to be rushed but it might be my only affordable option. Another option is getting the flight I was originally going to get, which was for 1030am to get in for lunch time, get settled in the back packer's again, then head to the Uni, stay the night and get a flight back the next evening. That flight is no longer cheap. I don't think it's possible to stay anymore. Flights back on the Friday aren't cheap either, so unless my parents decide to help me pay [even though they're already going to pay my phone bill] I had better go over and back in the day. Sophie said leaving your car in the car park costs $12 for a day so that's not so bad. I can take myself there and back. I think it will feel very adult, especially since lately I've been feeling like a kid. I can't wait to get to Sydney and be somewhere just for me and start working out my future. I wonder if I can still get the airport connect even though I'm not staying at a back packer's if I choose this option. Otherwise I'll have to get a train and be stressed that I won't make it back in time. I'll have to look that up on the internet. Hold on, I made a mistake. I was looking at the Hobart to Sydney flights for the way back and thought I had better check the actual Sydney to Hobart return scenario and I don't think that will work either! Ahh! So I'm looking at $263 to go up at 630am on Wednesday and come back at 630am on Thursday. I have definitely stuffed this up. I shouldn't have bought those boots last week and booked them then! I had completely forgotten about it though. Arr. Unless I look into Tiger Airlines, something I've never done before, but if it'll get there me cheaper then it might be worth it. I've heard bad things about Tiger though. They change your flights without telling you and it might not suit you. I'm not sure I'll be able to use that service. Ahh! I think that's a bust. They don't do direct flights to Sydney. I've royally fucked this up then! I haven't been paid yet so once I see the situation there I'll be able to figure out what I can afford and what I can't. There's no way I can go to and from Sydney on the Wednesday without missing what I'm going for and it keeps on getting expensive after that. Crapola. I just got paid and I have $267. That would cover my flights but I wouldn't be able to get petrol or do anything much until I get paid next week. Depends on my work tips too. Oh dear. I've been looking on the Flight Centre website, if you didn't know, and have been given results for Virgin Blue and Jet Star. Tiger is the cheap and nasty alternative, not to mention unreliable [according to my sources] so I could see if I can get a flight from Sydney to Melbourne then Melbourne to Hobart on Tiger. They don't combine if for you but if I allowed all Thursday to get back to Hobart via Tiger I might be okay. I'm not sure I'll get back though, that's how dodgy I hear they are. I'll ask mum and dad what to do when they get home.