What are you expecting us to do about inconsistencies in your play? The explained method is definitely consistent, so if you still die you have to practice. You won't improve just from asking how to get good
Ain't that quite the mean reply :/
Are you playing it on Lunatic? If not, start from bottom left and very slowly (while focused, tap right with the sound of each shot) move towards the right. Bomb when you reach the end, and with the correct timing you should be able to kill the final yellow fairy that gives a full 1.00 power, getting back your bomb.
If you ARE playing on Lunatic, start the same way but you'll need to turn once the crystal bullets start. What I usually do is count about four crystal shots, dash diagonally towards above the bottom right corner, then start moving the other way. Once again, you can time a bomb for safety and get it back.
...or you could just memorize the spawn points like the video lol ._.;;