Alright lets look at this from non bias stand point shall we?
Lets look at this "perfect" KDA game you played with Morgana, alright?
You placed a total of 7 wards that game Check Here. In 20 minutes, you should have many more wards placed. Wards last 2-3 minutes, which means you should be warding every 2-3 minutes.
Some things you need to know when supporting is which wards to buy, and the reason why you're buying them. Plus trinket upgrading.
As a support you need to maximize the vision of the jungle in appropriate places to prevent ganks, dragon theft and several other issues.
The first Item you should get is always going to be your sightstones
. And as soon as you get your sightstones trade your trinket in for sweeping lens
.
Make sure you have 250g at level 9 and upgrade your sweeping lens to Oracle Lens
.
Also vision wards. (Remember, maximize your vision of the jungle)
As long as your warding, keeping an eye on your map, and pinging missing enemies, incoming danger, etc. then you shouldn't have that much to worry about.
Now, I understand if you're being placed with terrible people, but before you complain about your team, at least make sure you're doing your job.
In this case, as a support, warding is your job.