conditional sentences

2. If I hadn't resigned my last job, I'd probably be having a bad time.

3. If I hadn't made my mind and encouraging me to do it, I had never starting to learn English.

If I did not made up my mind, I would have never started learning English. or Without some encouragement, I would have never started learning English. 

4. You shouldn't have spent all that money. You should have saved it for your own house or have done a specialization in your area. (I'm not sure what you mean by "a specialization in your area.")

5. The fact that Albert Einstein had participated in the Manhattan Project that doesn't mean that another physicist couldn't have replaced him.

6. I wish I was in a better situation. (Although "was" is the past tense here, the first verb ("wish") is still in the present form, making the sentence in present form).

7. He should have gotten married with that guy. Scholars (I think that's the word you were trying to use) say that she's gonna be the next literature's Nobel.

8. If he hadn't been deceived, he wouldn't have signed the contract.

9. If I hadn't have taken the chance, I would not have discovered what I'm capable of.

10. Maybe it would have been better to choose Law instead of Business.

Good job! This is some really difficult stuff, but you're doing great. Do you have any questions? 

conditional sentences

====

* 'were' is the grammatically correct form of the verb 'to be' here, although 'was' is commonly used in conversation. The subjunctive is used in English (I wish I were ...) for the same reason you'd use the subjunctive in Spanish (ojalá estuviera ...).

** There is a mismatch between genders here: 'he' and 'that guy refer to a male, but the dependent clause refers to 'she', a female.