GKE - how to attach static ip to internal load balancer

I want to connect service from one GKE cluster to another one. I created service as a internal load balancer and I would like to attach a static ip to it. I created my service.yml

apiVersion: v1
kind: Service
metadata:
  name: ilb-service
  annotations:
    cloud.google.com/load-balancer-type: "Internal"
    kubernetes.io/ingress.global-static-ip-name: es-test
  labels:
    app: hello
spec:
  type: LoadBalancer
  selector:
    app: hello
  ports:
  - port: 80
    targetPort: 8080
    protocol: TCP

However after apply -f when I check the service the load balancer ingress looks like this:

status:
  loadBalancer:
    ingress:
    - ip: 10.156.0.60

And I cannot connect using the static ip. How to solve it ?

EDIT:

After suggestion I changed the yml file to:
apiVersion: v1
kind: Service
metadata:
  name: ilb-service
  annotations:
    cloud.google.com/load-balancer-type: "Internal"
  labels:
    app: hello
spec:
  type: LoadBalancer
  selector:
    app: hello
  ports:
  - port: 80
    targetPort: 8080
    protocol: TCP
  loadBalancerIP: "xx.xxx.xxx.xxx" -- here my static ip

Service now looks like it:

spec:
  clusterIP: 11.11.1.111
  externalTrafficPolicy: Cluster
  loadBalancerIP: xx.xxx.xxx.xxx
  ports:
  - nodePort: 31894
    port: 80
    protocol: TCP
    targetPort: 8080
  selector:
    app: hello
  sessionAffinity: None
  type: LoadBalancer
status:
  loadBalancer: {}

And I still cannot connect

...
annotations: 
  networking.gke.io/load-balancer-type: "Internal"
...
type: LoadBalancer
loadBalancerIP: <your_static_internal_IP>