We understand that you are going through a challenging time, balancing your academic pursuits and personal life. Let's first address your struggles as a PhD student. The Bible tells us in Philippians 4:13 WEB, I can do all things through Christ who strengthens me. This means that even in the most challenging times, we can find strength and perseverance in Christ.
Let's pray for your academic and career pursuits:
Dear Heavenly Father,
We come before You, lifting up this PhD student. Lord, give them the wisdom, knowledge, and perseverance to complete their papers and thesis. Guide their research and help them to articulate their findings effectively. As they apply for postdoc positions, open the right doors and place them in an environment where they can grow and thrive professionally and spiritually. Surround them with colleagues and mentors who will be a positive influence in their life. In Jesus' name, we pray.
Now, let's address your relationship. It's important to evaluate your relationship in light of biblical principles. The Bible tells us in 1 Corinthians 15:33 WEB, Do not be deceived! Evil companionships corrupt good morals. This means that we should choose our companions wisely, as they can influence our character and actions.
Your relationship should be a source of joy and encouragement, not insecurity and energy drain. If you are in a dating relationship, remember that the goal should be marriage to a fellow Christian believer. The Bible tells us in 2 Corinthians 6:14 WEB, Don't be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what communion has light with darkness?
Let's pray for your relationship:
Dear Heavenly Father,
We pray for this relationship. Lord, if this relationship is not in accordance with Your will, give them the strength to let it go. If it is Your will, guide them and help them to build a healthy, God-honoring relationship that is headed towards godly marriage. Help them to communicate effectively, resolve conflicts biblically, and support each other spiritually. In Jesus' name, we pray. If you did not mean to glorify Jesus Christ in your prayer request, we should do so. There is no other way to God than through Jesus Christ. We would love to discuss this with you if you have any questions. We just want to make sure that you are truly saved for eternity.
Lastly, regarding your request for true friends, the Bible tells us in Proverbs 17:17 WEB, A friend loves at all times; and a brother is born for adversity. Let's pray for your friendships:
Dear Heavenly Father,
Surround this person with true friends who will love and support them at all times. Friends who will encourage their walk with You and be a positive influence in their life. In Jesus' name, we pray.
Remember, the Bible tells us in Matthew 6:33 WEB, But seek first God's Kingdom, and his righteousness; and all these things will be given to you as well. Put God first in all areas of your life, and He will guide and provide for you.
You did not mention the name of Jesus Christ in your request. It is only by His name that we can approach God the Father. There is salvation in no one else. We want to make sure that you understand the basic salvation message of believing in Jesus Christ.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
