First let me say that building a nation is not an option since Israel has been bulldozing and bombing everything and anything Palestinian since 1948.
What do you think she is doing wrong or right?
What do you think she should be doing?
Stop. That is exactly the problem that
flacaltenn is trying to point out to you. You are painting the Palestinians here as being without any agency to effect change on their own future. The Palestinians have to believe that the Palestinians can, in fact, build a nation. If they can't believe that -- if they can't at least have some hope of that -- they will never be able to do it.
That is the first thing they (and she and you) are doing wrong.
The second thing they (she, you) are doing wrong is denying the rights of one group of people and insisting that only one people have the sole rights. They have to find a way of accepting that there are two groups of people here who have rights to recognition. Whether that is in a two State solution or a one State solution is immaterial to the foundational idea that both peoples have rights in that land. Give up the idea that all of "Palestine" is to be an Arab Muslim nation.
The third thing they (she, you) are doing wrong is lying, exaggerating and changing the meanings of words. They need to tell the truth. Knock off with the emotional victimhood language. (for example, Israel hasn't bombed or bulldozed in Areas under Palestinian control (I'm leaving Gaza out of this as a lost cause for now) for decades. Decades.)
What Palestine (and I am talking the "West Bank" here, not Gaza) needs to do (in no particular order):
1. Invite Netanyahu to speak in Ramallah as he offered and start talking peace treaties with land swaps.
2. Start welcoming Jewish people into areas which may eventually be part of Palestine. These are taxpayers and nation-builders. Be neighborly with them.
2. Get out a map and decide which parts of Area C are vital to Palestinian interests and begin to delicately create facts on the ground. But ones which don't interfere with Israeli interests and best done with Israeli blessing.
3. Police the crap out of anyone who incites terror. The crap out of them. Seriously.
4. Play nice with Jordan and Egypt.
5. Encourage Jewish visitation and prayer to the Temple Mount. Create joint services or celebrations or peaceful picnics or whatever. Celebrate Jewish history in this place.
6. Offer Palestinians incentives to move out of parts of Area C in which Israel is heavily invested.
7. Make the checkpoints within what one hopes to be Palestine joint checkpoints. Police them in co-operation with Israel. Because you have the same goal -- to prevent anyone from attacking their neighbor.
8. Reject BDS. Embrace Israel investing in your country.
to be fair here are some ideas for what Israel should do (in no particular order):
Give the Palestinians chocolate in all of the parts of Area C that Israel intends to keep. (And by chocolate I mean water and electricity and roads and schools and hospitals and anything else they ask for or could possibly want). Make getting a building permit the easiest thing ever. Invest in their children. Educate them. Integrate the schools. Invite Jewish families there but make it a requirement that all children go to a joint Hebrew/Arab school. Send your really great teachers there. Raise children you are fluent in both cultures. And respect both cultures. Make sure all of the Palestinian families are employed and/or able to be self sufficient and/or receive equalization payments. Give them full access to Israel.