I can understand the pull toward what is familiar, and the desire to remain in one's heritage. It is incredibly difficult to give up something that has been part of your life for so long. The problem is that you really cannot be both a Catholic and a Baptist. If I was a betting person, I would be willing to bet that neither your Catholic priest nor Baptist pastor would allow you to remain in good standing as a member in either congregation. If you told them you'd joined (or remained in) the other church, they'd be likely to remove your membership in theirs!
But we digress. The (much more important) issue here is whether a born again Christian should remain in the Catholic denomination. The RCC does retain some orthodox doctrines (one God, Jesus as God, etc.), and there are sincere individuals who identify as Catholic who truly believe Jesus is God and desire to serve Him. It takes more than just an acknowledgement that Jesus is God - more than a belief in a single God - to be a Believer, however - to be saved. James 2:19 tells us "Thou believest that there is one God; thou doest well: he devils also believe, and tremble..."...but the devils are not believers in Christ. Neither are humans who, no matter how well-intentioned, have not come to God as He has directed - by faith alone, trusting in His grace alone in Christ's finished work on the cross.
The RCC organization denies Christ's finished work on the cross, teaching instead the false doctrine of the perpetual sacrifice of the mass. They lift Mary (Queen of Heaven - that's a false goddess in the Bible!) up as co-Mediatrix with Christ, in opposition to the Bible which states that "there is one man and one mediator between God & man... Christ Jesus." They repudiate the clear teaching of grace alone, through faith alone (Ephesians 2:8-9), and add a works requirement to salvation (Romans 3:20). In the Council of Trent, the defining doctrinal council of the RCC, which was reinforced by Vatican II, they have damned those who have trusted Christ alone in obedience to the Bible. Take a look at this list: https://carm.org/council-trent-canons-justification That means that if you have trusted Christ alone, by grace through faith, for salvation, the RCC has condemned you. By their own teachings, you cannot be a Catholic and a born-again Christian.
The fact that the RCC gets some things right, in no way excuses the fact that they get the most important things wrong. How many sincere people that desired to know and serve God have been led to an eternity in hell because of the RCC teachings? Such an organization is no place for a Bible-believer to be. This is not a matter of salvation. This is a matter of obedience to God's word. Think of the blasphemous teachings that are perpetrated through the Mass - can you truly bear to be present, and to be silent, knowing how many people are being led astray through this liturgy? Will not your presence encourage others to stay, or to come, and possibly lead to them being led astray as well?
John, if you will be patient with me a bit longer, something you said concerns me. You replied to HappyChristian that you knew you were growing in Christ because you attended Baptist services, fellowshipped with people, and were involved in the ministries. As we grow we will, yes, desire to serve God - desire to be at church to hear His Word - and desire to fellowship with other believers. And these things are good. The activities themselves, however, are not growth - but merely the evidence of it. Our growth is internal - a love for Christ, a love for His Word, a desire to spend time with Him in prayer & the Word, the desire to obey Him in personal obedience and ministry to others, the desire to share the truth with others, and an abhorrence for false doctrine. You've come from a background that emphasizes works. Some of us (myself included) also have a natural tendency to prioritize works over the internal fellowship with Christ. Please be careful not to allow works to define your relationship with Christ. It is by faith we come to Him, and by faith we grow. All our own righteousnesses, done in our own strength, are as filthy rags to Him. That verse applies not only to salvation, but also to our service after salvation.
I truly hope that it does not seem to you that we are 'piling on' you here. That is not our intent. We are truly and greatly concerned for you, and desire to see you grow in Christ.