Congratulations and well done.
Don't be put off by the threads here. A forum is a great way to get help in what can be quite a lonely path. It feels great to find that there are others having the same problems, and I've seen some really helpful suggestions. However that does not mean that all students have the same probems.
I am half-way through a 4-year funded PhD and it's been brilliant. There are a few PhD students with problems at my Uni, but I think the majority of us lead happy, intellectually stimulating, sociable lives and feed extremely well supported by our supervisors and other academics both within our faculty and outside of it.
There always will be hard times, and a forum such as this is a great way to let of steam or access the wider peer support network. But don't let it worry you. Just get stuck in and have fun.