Ex blocked me on everything

I would calm myself down first before anything, you seem really worried.

Relax, a little, sometimes things don't turn out the way you want them to, if you end on bad terms you do, don't try to rescue it. - it does nothing for you.
No point crying over spoilt milk.

If she wants to date your cousin, is it any of your business? You need to stop being paranoid and focus on moving forward with your life, not focusing on what shes doing with hers....

I know but my cousins my cousin, hes family, isnt that morally wrong?

well if she dates him, then it shows that she aint right person for you.

just calm it down, whatever happens, time will tell, being paranoid wont solve anything, besides she told she won't but if its up to you if you believe her.

I do have complete trust in her, its just I would really want her in my life. We were together for 14 months you get used to people being around

Back off until the dust settles properly. To be honest these situations seldom work out well, but they certainly won't if you continue to push in the circumstances you describe.

What my friend suggested is if I give it till tommorrow to see if she unblocks me, then he said he would try and talk to her. Thats just going to irritate her more right?

Fine to wait and see if she unlocks you and to try again if she does. But it seems a long shot that she will and then the only hope is to back off completely and see what happens. Months, not days is the timescale. In my experience once girls have gone cold it's a very poor prognosis and energy is far better expended on looking for new love.

Thats why I want to make the move before she turns completely against me, its just finding the right time, its a complete guess

Let her go, she clearly doesn’t want to talk to you. Respect her wishes and leave her alone, find a girl that wants you as much as you want her.

Im not directly messaging her anymore or trying to get into contact, im just talking to her friend. Is there anyway from this I could try and talk to her? I know I should move on but its been 14 months and I miss her so bad

If you’re talking to her friend to find out about her, that counts as trying to get in contact. By blocking you she made clear she doesn’t want to talk to you.

If you really care about her, you won’t want to make her uncomfortable by crossing the boundaries she’s setting. For both of your sake you have to cut the cord and move on.