In terms of advice, I would say cultivate radical humility (always a good policy for anything!).
In terms of prayer, I'd say sincerely ask the Lord to lead you to the truth about the Catholic faith and the Eucharist (or, if you prefer, the Lord's Supper). Open your heart to know the fullness of truth, as you opened your heart to Jesus, who is The Truth. Promise Jesus you'll go wherever he leads you — no matter how difficult. Hopefully, these are the kind of prayers you'd be willing to pray without first accepting any Catholic beliefs.
You have tellingly not asked for any explanations of the Eucharist or any reasons why we believe it, nor have you asked us to clarify any difficulties or doubts you have, so I'm not going to furnish you with information that you don't want. If you do in fact want to discuss your objections, we'd be happy to charitably address those.
If you want further advice, I'd encourage you to exercise your critical thinking skills and examine your own beliefs and why you believe them, and the historical basis of the Christian faith.
- What is the history of the Baptist view of the Lord's Supper?
- Why did Lutherans accept the Real Presence, but Baptists did not, even though both were Scripture Alone Christians?
- Why do all the ancient churches (including churches that split off in the 5th century) agree on the teaching on the Eucharist?
- What early historical sources do we have articulating the Christian view of the Eucharist?
These are just a few of the questions you could investigate.