HI
Never give up quality comes with practice. I have done a lot on my scroll saw and have had to scrape a few projects due to bad cuts or breakages. These most likely happen right near the end of the project as things start to get weak. I have learnt from these errors and am improving all the time.
Most important thing with any hobby is you need to enjoy what your doing. I find having more than one project on the go helps as you can switch to something else if you start to get bored of the one your currently on.