hi !!! i am studying the conditional verb forms

i think that i got it, but it´s dificult to know what i should use each one in a conversation

It´s difficult to know when I should use each in a conversation. 

It depends. 

Should if you are giving advice or telling someone the correct thing to do. You should study more often if you want to get good grades.

Could if the possibility exists but you aren´t sure if you are going to do the action or not. I could go to the beach this weekend (you have the ability to- the money, a car, etc..) but I don´t know if I want to.

would if you are stating (saying) what you would do (que harías) in a situation. If I were you, I would go to the beach and enjoy the weather.

I would love to travel more (me encantaría viajar más)

Hope this helps.