Learn French: C'est difficile de trouver un bon psychologue. - It is difficult to find a good psychologist.

In French, when you use an impersonal phrase like C'est difficile (It is difficult) followed by an action (an infinitive verb like trouver), you must connect them with the preposition de. You cannot just put the adjective and the verb together like in English.

Could I say Il est difficile de trouver instead of C'est difficile?

Yes, you can! Il est and C'est mean the exact same thing in this impersonal structure. C'est difficile de is very common in everyday spoken French, while Il est difficile de sounds a bit more formal and is often used in writing.

Why does the adjective bon come before the noun psychologue?

Most adjectives in French go after the noun, but bon (good) is one of the common, short adjectives that go before it. A helpful way to remember this is the BANGS rule: adjectives describing Beauty, Age, Number, Goodness, and Size usually come before the noun.

Is psychologue a masculine or feminine word here?

It is masculine here, because we use un bon (a good) instead of une bonne. However, the word psychologue itself doesn't change spelling for men or women. If you were talking about a female psychologist, you would just change the words before it to une bonne psychologue.