If you are newbie in wordpress then it is hard for you to learn many things which are required before posting on it.
Content also include posted title and this create user experience trouble, so it should be resolved and below are some plugins which are free and you can install : –
Although, it is premium but some features are totally free and you can use lifetime without any restrictions.
Rewrite title tag is free feature in which you can edit it. In content, it will be same but for SERP, it will show your desired tag.
You can even open tags.