Why not just have your Avian Medical Professional handle it! That way if an error occurs, they have the equipment and knowledge to provide proper medical care?
Most people use herbal medicines or if they know what's wrong they may get antibiotics. Lots of smaller birds do get I'll and die. I try my best to prevent cross contamination and keep thier environment clean to make sure they dont get I'll. There are not any real vets and they only treat animals like cats and dogs and farm animals.
Sunny, it's been a while since I've experienced it, but I'm recalling the leak is noticeable rather quickly. Side note, a friend long ago trimmed his parakeet's nails too much and it bled out, died. But not before bitting him one last time.
You might try a performing a search for instructions on how execute the task. I use a fingernail file and Dremel tool. I am at an advantage as Meisha is receptive:
From my experience, it is pretty abrupt (like, sudden bleeding, usually right after the cut) but I do not know if that is always the case...If you dremel, be very careful with their tongues and make sure you block their nares from the dust.
I do not do my own, as dremels can be very risky if done improperly and filing is also stressful for them. I take Noodles to the vet when she needs either done.
A regular vet’s aid...under the vet’s oversight...cut off two twos on one of my lovebirds about 20 years ago. And I’m talking the whole toes. The bird flinched at the last minute, the aid didn’t have a good grip...so bye bye toes.
The vet told me to rush to a CAV he knew of (this was before I knew of any CAVs in the area), and the CAV saved the bird before it bled out.
Noodles made a good point, know you limits and your ability to control the safety.
I've been around birds most of my life. I never considered having a veterinarian trim nails. Since Meisha goes to work with me, she is physically on me – a lot. For me the wait is impractical. We perform it as needed. In Meisha's first visit, the vet retracted his offering out of concern for negative impact it could have on the positive established process. It is likely less stressful on her with us performing the task than a stranger.
You reflected that a veterinarian isn't a viable option in your situation. With clipping it's a hit or miss. I recommend exploring the fingernail file option. With Meisha she approached us up front wanting a manicure, holding her talon out.
You might consider sitting with your bird and file your own nails. Fake it if you needed to draw out your illustration of the procedure. Gauge your birds response for any observation. Start with simple movement across the birds nail without clasping it, to start the familiarity. Talk to the bird in a pleasant tone. If it is possible, start with a long toe, clasping the toe with your index finger and thumb where the nail starts. Gently file to round off. Release as when the bird pulls back. Continue talking the the bird calmly. Tap the toe and look into the eyes to resume. The build on it. Consider returning to filing your own nails for a break in the process.