It depends on what your trying to manifest, and your skill level. Things like death curses can take a long time to manifest because of their complexity. If it’s a small amount of cash it probably won’t take too long. It varies on how much the magick needs to change in order for you desire to be fulfilled. And of course, when manifesting something, try to put in the work to make it manifest. Like if you need a new job, then do your ritual, and use whatever methods you like to look for a new one. Hope this helps
Manifesting is about moving into a reality where your desire exists , since time and space don’t exist you have to get in energetic resonance with the desired reality . What holds most back is subconscious blockages from entering the desire reality , you must remove them
The main thing I would think of to do then would be to instead use a persuasion spirits help to convince your parents to have one. The pet store thing is a bit of an issue as capturing a wild bird isn’t much of an option. I guess you’d just have to drive some distance to try and find one. I guess I’ll recommend King Paimon as a spirit to help you persuade your parents as he is known to be good with persuasion.