Well like what the title says I'm making a bp and I need help. Can you guys tell me what builds there are and advantages and skills I should get and equip would be very helpful

Simple.
Cookiecutter build: 43 DEX, 30 STA (recommend), xxx STR.
EQ: Get Talin set.. + it to like +6 if you has the penya. A shield with 15% aspd or more. Then use a random knuckle until you can wield a Yakadain knuckle. (lvl 60, -20m for clean). Then when you are 75 get a Historic Knuckle.. this is where it comes tricky becouse it costs around 200m for clean.. But its worth it. I am not really sure for how long you should use the Talin set, but at 105 you should get a Rody set. It adds 40% dmg of crit I think and use r Historic Knuckle forever.. or get a crit % shield.. wich isnt very easy to find.. recommend 10% crit or more and with this shield, use a Legendary Golden Glove (knuckle). Then hit Hero and asal for us in siege.

aand.. ofcourse 2x demols +12 and vigors +9..

[My highest BP is lvl 65.. but I know alot about this game. Thrym, now its ur time to step in for corrections]

a bp is easy to figure out actually o.O

If you are looking for a build good for both PvP and PvM, STR AoE is the way to go. Following this build you should have like 80~100 STA - xxx STR and level using Burst Crack. This build is potentially a lot cheaper than a 1x1 BP since you'll need only 2 sets (or just one, Alext is good, but can be skipped) and one Green Weapon (Angel Gloves). You can work your way to level 90 using STA awakened Shields and Knuckles. When you get Billst/Billporon + Angel Gloves you'll have loads of HP and enough STR to pack some nasty Asals (with a little boost from MP awakens).

yeah, I was talking about 1v1 BPs
and today I was partering a Burst crack BP, he had almost the same dmg as me. (lvl 28 skill = lvl 65 skill?)
altho, he had 60 base sta (I got 125). Pretty much depending on Prevention.. but seemed a good idea to me.