Would it be a good decision to switch from Nikkor 85mm f/1.8 to a 50mm f/1.4 if?

I'm using a Nikon D90
i have been using the 85mm f/1.8 for over a year and i have to say this its been given me VERY sharp images amazing colour but one problem i always face is that it seems very difficult to handle in full body situations or when taking pictures of fundraisers in my school if i'm not doing simple head-shots t therefore i have been thinking of getting something with a smaller focal length that is more practical
if i was to switch to 50mm f/1.4 will i see noticeable changes in quality? If so are they better or worse? And will my headshots look about the same or will i lose something?

*optional question* if you have another lens in mind wat would you suggest?

Added (1). Yes i know i uploaded this Q before but i missed some important information that ppl didn't get
i apologize for that

In what way do you find the 85mm difficult to handle? If the problem stems from the narrow depth of field, using a lens with an even larger maximum aperture will only be more difficult.

I personally traded in my 85mm 1.8 for a Sigma 50mm 1.4 because the 85mm was a little too long for indoor shots. I like the 50mm very much.

Picture quality depends mostly on you so don't be worried about it. It seems you already know how to get good pictures. You will get exactly the same picture whether you use the 85mm or the 50mm because you already know exactly what you're doing. You have to admit that your yearning for a shorter lens is purely comfort driven. That is the only right reason for adding a new lens to your bag.

Quality wise, no, no differences.

Personally I would not like to lose that 85, I like the focal length for headshot. Anyway, consider getting an f1.8 so you can keep the 85.

An 85mm on a cropped sensor body is more like a 135 in traditional terms, just a little long for flattering portraits on all types of face, you are forced back a few paces to fit the head and shoulders in, which means less background blur (you aren't focusing as close and the perspective is enlongated) an equivalent 80 is more flattering, so a 50mm on your cropped sensor body is actually ideal.

You will be closer to your subject, and so will be focusing closer, throwing the background out more, and the camera to subject to background distance will be closer to the ideal of 1: at least 2. (that is the background should be at least double the distance from the subject that the camera is)

As you are also using a less telephoto lens and at the closer end of the range, you should find you have more 'throw' in the focus ring, making accurate focus easier, and again the max aperture of f1.4 (effective for composition no matter what aperture you actually shoot at) makes the viewfinder brighter (so focusing easier, even in AF there should be a speed benefit) and critical depth of field more apparent.

The fact its shorter means that you do fuller length portraits without going so far back as well, with all the previous benefits as discussed.

The 85mm lens would be ideal for a full frame body, but I think for the reasons discussed, the 50 f1.4 is a natural choice for portraiture on your D90.

You may be better off getting a constant aperture zoom like the Tamron 17-50mm f2.8. While not as tack sharp as my 50mm f1.4 it is near enough. You have to pixel peep to see the difference.

You may still have problems using a 50mm in a tight space, especially for large group shots where a 24mm would be more useful when you can't stand far back enough.

I would trade the tack sharpness of my 50mm for the flexibility of a constant aperture zoom.

You can consider Nikon 50mm f/1.4D AF Nikkor Lens for Nikon Digital SLR Cameras

50mm f/1.4D AF Nikkor Lens for Nikon DSLRs
Lens construction: 7 elements in 6 groups
Closest focusing: 0.45m/1.5 ft.
Accepts 52mm filters
Includes 52mm lens cap, rear cap