If you are looking for datasets from amateur astrophotographers to practice with, there are a number for useful resources.
Processing is meant to be fun! If you really need help with a particular dataset, jump on the forums or contact us directly for some pointers - even if you're just using the trial.
Thank you StarTools for turning my average photos into amazing ones.
A new way of astronomical image and signal processing.
Overdriving the 'Strength' parameter too much may make channel transitions too visible.
You can convert everything you see to a format you find convenient. Give it a try!