Hi Pavle, you'd be better served renting lenses and trying them out than buying. Lensrentals and BorrowedLenses have lenses to rent.
Regarding photo lenses vs cinema lenses, check out comparisons like this one:

https://www.youtube.com/watch?v=4fp4jt4oZE4

The main reason cinema primes are better for filmmaking is the access to gears, focus marks, hard stops, and de-clicked apertures, which don't exist on photo lenses.

I've used Wipster, Frame.io and Vimeo Pro. They all price differently.
In terms of value, Frame.io is great at $25/month for 50 GB of storage (that's a lot of H264 files). Like Wipster, it has versioning AND allows you to upload projects and images. But its interface isn't as simple and sexy as Wipster.
Wipster is great and clients really take to it, but they've changed their pricing from $15/month (unlimited videos) to $65/month (for 15 videos or "projects"); as an early adopter, this really pissed me off, sending me to Frame.io.
What sets these three apart is versioning. Versioning is where you upload updates to a video. When this is done right, you and your client sees one video with incremental versions which can be accessed.
I can't stress enough how important this is if you have clients. Wipster does this the best; Frame.io does it fine and Vimeo Pro doesn't do it at all (or is yet to).
The pricing for these services is based on the versioning; Wipster treats each video as a "project", with unlimited versions. Frame.io is more concerned with the amount of space each video takes up (and prices accordingly).
Vimeo Pro only allows 20 GB/week, doesn't have versioning, but is only $17/month.
I would try all three (free trials) and see what resonates with your workflow. All three have Adobe Premiere integration.

You're comparing apples and oranges. One has 4K, the other one doesn't. One shoots raw, the other doesn't. One eats batteries, the other one lasts hours on a single battery.

What matters to you when you're shooting? No one on this forum can answer that question but you.

Your shutter speed should be DOUBLE your frame rate.
So 24 fps=1/48 or 1/50
If shooting sports or fast movement that needs to be slowed down, increase your shutter speed beyond 1/48.
Sometimes I increase the shutter speed if I don't have any movement in the scene (like a sit-down interview), don't have NDs, and need to cut light.

With Wipster having abandoned their amazing $15/unlimited plan, this feels more reasonable for the freelancer, with the same functionality.

Hit the CC switch to turn on the English subtitles