django on nginx + uwsgi / static files don't show - django

Question

So I want to run django on nginx with uwsgi. I installed everything, changed the ALLOWED_HOSTS and STATIC_ROOT in the settings.py and ran "collectstatic". With the terminal I can see that the admin-static-files were put exactly where I wanted them to be put. Yet I don't see the static files when I go to domainxy.de/admin . After my the installation I did this:
sudo mkdir -p /etc/uwsgi/sites
sudo nano /etc/uwsgi/sites/mysite.ini
with
####mysite.ini####
[uwsgi]
project = mysite
uid = root
base = /%(uid)
chdir = %(base)/%(project)
module = %(project).wsgi:application
master = true
processes = 5
socket = /run/uwsgi/%(project).sock
chown-socket = %(uid):www-data
chmod-socket = 660
vacuum = true
and
sudo nano /etc/systemd/system/uwsgi.service
with
###uwsgi.service####
[Unit]
Description=uWSGI Emperor service
[Service]
ExecStartPre=/bin/bash -c 'mkdir -p /run/uwsgi; chown root:www-data /run/uwsgi'
ExecStart=/usr/local/bin/uwsgi --emperor /etc/uwsgi/sites
Restart=always
KillSignal=SIGQUIT
Type=notify
NotifyAccess=all
[Install]
WantedBy=multi-user.target
and
sudo nano /etc/nginx/sites-available/mysite.conf
with
####mysite.conf####
server {
listen 80;
server_name domainxy.de www.domainxy.de xx.xxx.xxx.xxx;
location = /favicon.ico { access_log off; log_not_found off; }
location /static {
root /root/mysite/;
}
location / {
include uwsgi_params;
uwsgi_pass unix:/run/uwsgi/mysite.sock;
}
}
and
sudo ln -s /etc/nginx/sites-available/mysite.conf /etc/nginx/sites-enabled
sudo systemctl restart nginx
sudo systemctl start uwsgi
sudo ufw allow 'Nginx Full'
Where did I make the mistake? I did change the folders in "mysite.conf" multiple times but nothing helped so far. Thanks for helping. Don't judge me that I am a newbie and also not that I used the root-user for simplifying here.
Edit: my django-project is in /root/mysite/ and the settings.py is
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, "static/")