How do I increment field in Database for each entry on Vue.js

I have a Vue app which has a form which you can submit and all the submissions are shown on a different page with the option to delete them or give each a thumbs up. The issue I am having is targeting each entries thumbsUp to increment it by one. For example, I have a function "thumbsUp" which returns return this.forms.form[1].thumbsUp++ on each click, but I would like it to target each entry automatically. Forum submission:

    <script>
import {formRef} from '../firebase' //imports reference to form object stored in firebase

export default {
  data(){
    return{
      submitted:false,
      form:{
        name:'',
        state:'',
        review:'',
        thumbsUp: 0
      },
      name:'hey',
    }
  },

methods: {
  //pushes this.form object as {form} to firebase using the formRef
  submitForm(){
    formRef.push({form: this.form, edit: false})
    this.submitted = true
  }
}

}
</script>

Forum review page:

<template lang="html">
<div class="" class="wrapper">
<div v-for="review of forms" class="reviews">
  
<h1><strong></strong>, from <strong></strong> said: </h1>
<p></p>
<button @click="removePost(review['.key']) "type="button" name="button">Remove Post</button>
<span >Thumbs up:  </span>
<button @click="thumbsUp" type="button" name="button">Thumbs up!</button>
</div>
</div>
</template>
<script>
import {formRef} from '../firebase'
export default {
  data(){
    return{
    }
  },
  firebase:{
    forms: formRef //stores form reference inside of "forms"
  },
methods:{
  //takes key from child of formRef to remove post
  removePost(key){
    formRef.child(key).remove()
  },
  thumbsUp(){
return this.forms.form[1].thumbsUp++ //needs fix
}

},

}