Orgo is not difficult but requires consistent practice and effort.
It is like a language----very sytematic and technical but can be quite fun. I think that many students find it hard because they haven't grasped the right approach to take.
1.) Don't memorize every single detail. You'll go crazy and not get the big picture if you do.
All the reactions fit into a dozen or so general mechanisms. If you focus on the 'force' behind why bonds are breaking and forming---the electronic configurations of the compounds influencing each other and ultimately electrons shifting around---you'll do fine.
2.) Most impostant: Do ALL the problems in the chapters that you cover in your text. After you do them once, do them again and again---rinse and repeat. At first, it will seem time- consuming, nerdy, and tedious, but with each interval, you'll be faster and it will get more and more satisfying since it becomes so easy. By the time you're through, you'll be able to solve synthesis problems that require as many as five or six different steps, in the blink of an eye. You'll actually feel astounded that you were able to learn all that stuff so well.
Take my advice and not only will you actually like orgo, but you will kick some serious a$$!
Good Luck!