“Can speech delay be fixed?”

It is impossible to answer this question. Early intervention is key and speech therapy will support your childs communication in multiple modalities. Prognosis is dependent on the specific communication profile of your child.

Yes, a speech delay can be supported by seeking intervention from a Speech-Language Pathologist. I would request a referral from your Pediatrician and schedule an evaluation with a SLP in your area to further assist with a plan that fits your child's needs.

Yes, a speech pathologist can assess your daughter and determine why she isn't talking and what treatment to take

Yes. Take her for a speech evaluation.

Yes, a speech delay can be remedied. The first step is to determine why your daughter is not speaking. There are many different reasons why a childs speech is delayed; some are structural, such as a tongue-tie. Some are auditory-based, such as hearing loss or not able to perceive discreet speech sounds. Some are language-based, some are attention-based. When you know why the child is struggling, you can devise targeted speech therapy. All of this is explained in detail in my book Speak to Me; 10 Reasons Why your Child is Not Speaking as Expected, available on Amazon. Carol Krakower