Can I lift nose tip with fillers/botox? (photo)

A “liquid” or non-surgical rhinoplasty involves injecting an appropriate filler into either the bridge or tip of the nose to create either a smoother bridge or a raised or more prominent tip. Not every patient is a candidate for this technique and in general, it is used more for augmenting the nose than reducing the nose. Please take caution with filler injections into the nose if you have had prior surgery as this increases the risk of complications. 
Consult with an experienced rhinoplasty surgeon who also does a significant number of filler injections for a complete range of options that are appropriate for your situation.
A filler will not raise the tip, but only augment it. If you want to alter the tip of your nose, tip-refining surgery would be your best option.
Gary Linkov, MD
Rhinoplasty Specialist
Manhattan

You need a real revision rhinoplasty by a true expert, who knows how to elevate that drooping tip. And (no offense) who can elevate it a very large amount.
Fillers and botox cannot elevate the tip at all, and they might get in the way of a real revision.
Even the photos that you posted back at 2 and 3 weeks after surgery showed that the nose was going to end up too long. You very much need to re-evaluate your surgeon.
But it is possible to make these changes. In my experience, elevating the tip of the nose is one of the more predictable changes to make in a rhinoplasty, even in a revision. 
The woman in the short video that I posted with this answer had the tip of her nose elevated substantially in her revision rhinoplasty. I'd love for you to see some really excellent morphs of what might be possible with your nose. I think it would make you less afraid of another operation, and optimistic that success might be possible.
Remember that rhinoplasty is an exquisitely difficult operation to get right, and you should only have surgery if you are able to make yourself very confident in your surgeon's skills. The changes that your nose needs require advanced techniques, requiring skill that most plastic surgeons don't possess with expertise. For most noses, it's much better to not have surgery than to have inexpertly-performed surgery. Read my essay on how to stay out of trouble while selecting a rhinoplasty surgeon. And for those who have had previous surgery, it also discusses how to tell whether your first surgeon should be performing your revision.
Your nose is also a perfect example of why computer imaging is mandatory in rhinoplasty. You need to know exactly what the surgeon is planning to accomplish -- what features he thinks he can change, and by how much he thinks he can change them. I always email morphs to my online rhinoplasty consultations. When you see the surgeon's goals in the morphs, you'll know whether he has an eye for an attractive nose, and whether he shares your opinion of what constitutes an attractive nose. You'll also know whether the changes he proposes are large enough to be meaningful to you, and whether he understands your wishes enough to address all of your priorities. How would you ever get that figured out without the morphs?