Of course you have hope!
Weight loss is never linear. The scale will always experience those wild upward swings, so that's why it's important to have other methods for judging how everything is coming along, such as...
Measuring for inch loss
How your clothing fits
Body Fat testing
As an example, for myself, I used to think that 130lbs was my rock bottom scale weight. So many times, this is where my weight loss would come to a screeching halt and I thought that was it. But in 2011, at the weight of 130lbs, I just made the decision to let my body do what IT want's to do, rather than it having *me* tell it what I want it to do.
Once I took that mentality..its been smooth sailing! I now weigh 105lbs and am in the best shape of my life. What really helped, was that I gave up stressing about what the scale said. If it went down...great! If it stayed put..great! If it went up a pound or two..I knew it was *normal*, cause I knew I was still on track.
So keep pushing it! You'll get to where you want to be!!