At five hours, it's very early days. Do stick at it and eventually (trust me) you will hear these words from your examiner "Congratulations, you have passed your skills test" Believe me, it's a fantastic feeling!!
Like you, there were times when I had doubts about my ability (I didn't start until the age of 62), and had some days when I thought I would never hack it, but hack it I did - the day your shiny new ppl comes through the letterbox you will thank your lucky stars you stuck with it. You will never stop learning though.
I'm now back with an instructor, working towards the IMC, and that too is hard work, but very rewarding.
Best of luck, and HNY.